Seiko Cal. 6337 - 646

This Quartz model from 1975 features a 41mm Hardlex-Coated Steel case. It features a Silver dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-8ef584fd9fff]

Also known as: Monster, Bullhead

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

11.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Silver

Jewels

34j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1975

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