Seiko Cal. 0712 - 371

This Quartz model from 1975 features a 36mm Two-Tone case. Powered by the 0712 caliber with 25j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-2b2f2b35bad7]

Also known as: Monster, Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

36mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

25j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1975

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