Seiko Cal. 7139 - 242

This Hand-Winding model from 1974 features a 43mm Hardlex-Coated Steel case. Powered by the 7139 caliber with 22j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-4a9c0704c637]

Also known as: Silverwave, Flighty

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

9.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Cream

Jewels

22j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1974

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