Seiko Cal. 7139 - 936

This Quartz model from 1975 features a 45mm Gold-Plated case. Powered by the 7139 caliber with 33j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-094251da73bf]

Also known as: Sea Horse, Crown

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

13.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Black

Jewels

33j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1975

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