Seiko Cal. 5231 - 271

This Quartz model from 1970 features a 38mm Two-Tone case. Powered by the 5231 caliber with 23j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-1095939c3701]

Also known as: Helmet, Silverwave

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

38mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Green

Jewels

23j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1970

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