Seiko Cal. 6231 - 388

This Hand-Winding model from 1972 features a 34mm Titanium case. Powered by the 6231 caliber with 32j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-35f71a658de5]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

34mm

Case Thickness

9.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Black

Jewels

32j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1972

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