Seiko Cal. 5237 - 901

This Hand-Winding model from 1978 features a 43mm PVD Black case. Powered by the 5237 caliber with 21j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-f7868cfb6d37]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

8.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Green

Jewels

21j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1978

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