Seiko Cal. 0737 - 420

This Spring Drive model from 1985 features a 41mm PVD Black case. Powered by the 0737 caliber with 23j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-7dfe250d15b1]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

60m

Dial Color

Burgundy

Jewels

23j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1985

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