Seiko Cal. 6634 - 660

This Spring Drive model from 1973 features a 44mm Stainless Steel case. It features a Burgundy dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-035d4c9d70a0]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

12.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Burgundy

Jewels

25j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1973

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