Seiko Cal. 5653 - 826

This Spring Drive model from 1971 features a 43mm Hardlex-Coated Steel case. It features a Green dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-611c1b0b9574]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

12.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Green

Jewels

36j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1971

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