Seiko Cal. 6642 - 431

This Automatic model from 1970 features a 34mm Stainless Steel case. It features a Green dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-01c4edf073d1]

Also known as: Navigator, Golden Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

9.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Green

Jewels

17j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1970

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