Seiko Cal. 0731 - 761

This Hand-Winding model from 1976 features a 46mm Hardlex-Coated Steel case. Powered by the 0731 caliber with 32j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-8f251792fe93]

Also known as: Turtle, Helmet

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Green

Jewels

32j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1976

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