Seiko Cal. 7139 - 242

Seiko 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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seikata-wm-4a9c0704c637