Seiko Cal. 6636 - 745

This Automatic model from 1970 features a 42mm Hardlex-Coated Steel case. It features a Silver dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-3b8bfeca77e6]

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

8.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Silver

Jewels

30j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1970

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