Seiko Cal. 5231 - 300

This Automatic model from 1972 features a 41mm Titanium case. Powered by the 5231 caliber with 30j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-c7708c2c921d]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

41mm

Case Thickness

15.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Burgundy

Jewels

30j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1972

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