Benrus Watch Age Determination by Movement

BENRUS – movements catalog (description and/or images) | 1920-1945

The list has at base "Benrus - material catalog" (cca. 1945-1947) and "WMDAA catalog - Benrus section" (cca. 1957) and also different specifications made on the passionate forums.

As I find them, I will try to attach to each model also an actual picture.
* * *
size | model | Benrus releasing year
- - - - - - - - - - - - - - - - - - - -
3 ¾” model P (approx. 1920-1930)

- model P: 17 jewels, base FHF 59-21, 3.75 x 9.25"

4 ¼” model Y (approx. 1920-1930)

- model Y: 17 jewels, base ETA 746, 4.5 x 10"

4 ¾” model H (approx. 1920-1930)

- n/a, base PESEUX 10, 4.75 x 11''

5” model Q (c. 1930-1945)

baza AS 976, 5 x 7"

- model Q 10: 7 jewels, straight escape wheel pivots;

- model Q 11: 17 jewels, 2 conical pivots;

- model Q 12: 17 jewels, 1 conical pivot, center top jewel

5 ¼” model W (approx. 1920-1930)
- model W: 15 jewels, base ETA 761, 5.25 x 8.5"

5 ½” model AE (approx. 1930-1945)

base AS 1012 el AE 10: 7 jewels, straight escape wheel pivots;

- model AE 11: 17 jewels, 2 conical pivots;

- model AE 12: 17 jewels, 1 conical pivot, center top jewel

- model AE 112: 17 jewels, 1 conical pivot, center top jewel

- model AE 13: 17 jewels, 1 conical pivot, special regulator

5 ¾” model BC (approx. 1930-1945)

base ETA 1075, 5.75 x 7"
- model BC 1: 17 jewels, 1 conical pivot, center top jewel

 5 ¾” model BL (approx. 1930-1945)

baza ETA 1185, 5.75 x 7"
- model BL: 17 jewels

6 x 8” model AB (approx. 1930-1945)

base FHF 123, 6.75 x 8"
- model AB 1: 7 jewels, straight escape wheel pivots;

- model AB 2: 17 jewels, 1 conical pivot, center top jewel

- model AB 3: 15 jewels, straight escape wheel pivots;

- model AB 4: 15 jewels, straight escape wheel pivots;

- model AB 6: 17 jewels, 1 conical pivot, center top jewel

- model AB 10: 7 jewels, straight escape wheel pivots;

- model AB 11: 17 jewels, 2 conical pivots;

- model AB 12: 17 jewels, 1 conical pivot, center top jewel

- model AB 13: 17 jewels, 2 conical pivots;
- model AB 14: 15 jewels, straight escape wheel pivots;

6 x 8” model BM (approx. 1930-1945)

base FHF 60, 6.75 x 8"
- model BM 1: n/a
- model BM 2: n/a
- model BM 401: 21 jewels

6 x 8” model AI (approx. 1920-1930)

base FHF 120, 6.75 x 8"
- model AI 1: n/a
6 x 8” model AG (approx. 1920-1930)

 6 ¾ x 7” model AF (approx. 1920-1930)

base AS 1023, 6.75 x 7.75"
- model AF 16: n/a

6 ¾ x 7” model AF – center second (approx. 1920-1930)

6 ¾ x 7 ¾” model AZ (approx. 1930-1945)

- model AZ 1: 17 jewels, 1 conical pivot, center top jewel;

- model AZ 2: 15 jewels, straight escape wheel pivot;

6 ¾” model S (approx. 1920-1930)

 7 ¾” model B (approx. 1920-1930)

 7 ¾” model BD (approx. 1930-1945)

- model BD 1: 17 jewels, 1 conical pivot, center top jewel;

- model BD 2: 15 jewels, straight escape wheel pivot;

7 ¾” model AP (approx. 1930-1945)

- model AP 10: 7 jewels, straight escape wheel pivot;

- model AP 12: 15 jewels, straight escape wheel pivot;

- model AP 11: 17 jewels, 1 conical pivot, center top jewel;

7 ¾” model I (approx. 1920-1930)

 8 ¾” model AU (approx. 1920-1930)

8 ¾” model AY (approx. 1930-1945)

- model AY 1: 17 jewel, 1 conical pivot, center top jewel;

- model AY 2: 15 jewel, straight escape wheel pivot;

- model AY 11: 17 jewel, 1 conical pivot, special balance staff-low;

- model AY 12: 15 jewel, straight escape wheel pivot, special balance staff-low;

8 ¾” model AY – center second (approx. 1930-1945)

- model AY 3: 17 jewel, 1 conical pivot, center top jewel;

- model AY 13: 17 jewel, 1 conical pivot, center top jewel, balance staff-low;

8 ¾” model BI – automatic (approx. 1930-1945)

8 ¾” model L (approx. 1920-1930

8 ¾” model V (approx. 1920-1930

7 x 8” model BN (approx. 1930-1945)

7 x 11” model AC (approx. 1930-1945)

- model AC 8: 17 jewels, 1 conical pivot, center top jewel, shock resistant;

- model AC 9: 17 jewels, 1 conical pivot, center top jewel, non-shock resistant;

- model AC 19: 17 jewels, 1 conical pivot, center top jewel, non-shock resistant;

- model AC 7: 17 jewels, 2 conical pivots, shock resistant;

- model AC 10: 7 jewels, straight escape wheel pivot;

- model AC 12: 15 jewels, straight escape wheel pivot;

- model AC 15: 15 jewels, straight escape wheel pivot;

- model AC 17: 17 jewels, special conical pivot on pallet arbor;

8 x 9” model AX (approx. 1930-1945)

- model AX 1: 17 jewels, 1 conical pivot, center top jewel;

- model AX 2: 17 jewels, 1 conical pivot, center top jewel;

- model AX 3: 17 jewels, 1 conical pivot, center top jewel;

- model AX 4: 17 jewels, 1 conical pivot, center top jewel;

- model AX 11: 17 jewels, 1 conical pivot, center top jewel, special shock-resistant;

- model AX 12: 17 jewels, 1 conical pivot, center top jewel; special shock-resistant;

8 x 10” model AK (approx. 1930-1945)

- model AK 10: 15 jewels, straight escape wheel pivot;

- model AK 14: 15 jewels, straight escape wheel pivot;

- model AK 15: 15 jewels, straight escape wheel pivot;

- model AK 11: 17 jewels, 2 conical pivots;

- model AK 13: 17 jewels, 2 conical pivots;

- model AK 17: 17 jewels, 2 conical pivots;

- model AK 12: 17 jewels, 1 conical pivot, center top jewel;

- model AK 16: 17 jewels, 1 conical pivot, center top jewel;

- model AK 1: 17 jewels, 1 conical pivot, center top jewel;

10 ¼” model R (approx. 1920-1930)

10 ½” model A (approx. 1920-1930

10 ½” model AN – 11 ½” model AO (ca. 1930-1945)

- model AN 11: 17 jewels, 1 conical pivot, center top jewel;

- model AN 13: 17 jewels, 1 conical pivot, center top jewel;

- model AN 14: 17 jewels, 1 conical pivot, center top jewel;

- model AN 15: 17 jewels, 1 conical pivot, center top jewel;

- model AN 18: 15 jewels, straight escape wheel pivot;

- model AN 10: 7 jewels, straight escape wheel pivot;

note: all material for model AN and AO is interchangeable except bridges and plates.

10 ½” model AR – 10 ½” model AT (approx. 1930-1945)

- model AR 1: 15 jewels, straight escape wheel pivot;

- model AR 13: 15 jewels, straight escape wheel pivot;

- model AR 14: 15 jewels, straight escape wheel pivot;

- model AR 18: 15 jewels, straight escape wheel pivot;

- model AR 11: 17 jewels, 1 conical pivot, center top jewel;

- model AR 12: 17 jewels, 1 conical pivot, center top jewel;

- model AR 15: 17 jewels, 1 conical pivot, center top jewel;

- model AR 19: 17 jewels, 1 conical pivot, center top jewel;

note: all material for model AR and AT is interchangeable except bridges and plates.

10 ½” model AR – center second (approx. 1930-1945)

10 ½” model BA (approx. 1930-1945)

- model BA 1: 17 jewels, 1 conical pivot, center top jewel;

- model BA 2: 17 jewels, 1 conical pivot, center top jewel, special bevel and plates;

note: all material for model BA and BB is interchangeable except bridges and plates.

10 ½” model BK – center second (approx. 1930-1945)

- model BK 1: 15 jewels, straight escape wheel pivot;

- model BK 2: 17 jewels, 2 conical pivots;

note: all material for model BK and BH is interchangeable except bridges and plates.

10 ½” model BG (approx. 1930-1945)

- model BG: 15 jewels, straight escape wheel pivot;

note: all material for model BG and BF is interchangeable except bridges and plates.

11 ½” model BB (approx. 1930-1945)

- model BB 1: 17 jewels, 1 conical pivot, center top jewel;

- model BB 4: 17 jewels, 1 conical pivot, center top jewel;

- model BB 11: 17 jewels, 1 conical pivot, center top jewel;

- model BB 2: 15 jewels, straight escape wheel pivot;

- model BB 3: 15 jewels, straight escape wheel pivot;

- model BB 12: 15 jewels, straight escape wheel pivot;

- model BB 13: 15 jewels, straight escape wheel pivot;

note: all material for model BA and BB is interchangeable except bridges and plates.

11 ½” model bra (approx. 1930-1945)

- model BH 1: 15 jewels, straight escape wheel pivot;

- model BH 2: 15 jewels, straight escape wheel pivot, special stop system;

note: all material for model BH and BK is interchangeable except bridges and plates.

11 ½” model BF (approx. 1930-1945)

- model BF 1: 15 jewels, straight escape wheel pivot;

note: all material for model BF and BG is interchangeable except bridges and plates.

11 ½” model BR (approx. 1930-1945)

11 ½” model BT – automatic (approx. 1930-1945)

12” model M (approx. 1920-1930)

17” model AW (approx. 1920-1945)

- model AW 1: 15 jewels, straight escape wheel pivot;

- model AW 2: 17 jewels, 2 conical pivots;

- model AW 3: 17 jewels, 1 conical pivot, center top jewel;

17” model AH (approx. 1920-1945)

- model AH 10: 15 jewels, straight escape wheel pivot;

- model AH 11: 15 jewels, straight escape wheel pivot;

- model AH 12: 17 jewels, 1 conical pivot, center top jewel;