Seiko Cal. 6631 - 373

This Spring Drive model from 1982 features a 42mm Hardlex-Coated Steel case. It features a Burgundy dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-0a8e66e2ae15]

Also known as: Samurai, Monster

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

8.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Burgundy

Jewels

28j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1982

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