Seiko Cal. 7138 - 122

This Quartz model from 1972 features a 36mm Stainless Steel case. Powered by the 7138 caliber with 35j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-ac65b2e70e74]

Also known as: Tuna, Helmet

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Green

Jewels

35j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1972

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