Seiko Cal. 4438 - 645

This Quartz model from 1966 features a 41mm Hardlex-Coated Steel case. It features a Silver dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-82cff3261f85]

Also known as: World Timer

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

11.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Silver

Jewels

17j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1966

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