Seiko Cal. 5657 - 432

This Automatic model from 1965 features a 34mm PVD Black case. Powered by the 5657 caliber with 21j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-f8be0b2e63d4]

Also known as: Bullhead, UFO

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

34mm

Case Thickness

15.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1965

Related Models

• Seiko 4414-470
• Seiko 4455-653
• Seiko 5618-461
• Seiko 6226-475
• Seiko 5253-910
• Seiko 5613-266
• Seiko 6392-320
• Seiko 4459-629
• Seiko 6238-493
• Seiko 6324-697
• Seiko 6247-414
• Seiko 6144-821