Seiko Cal. 6638 - 848

This Hand-Winding model from 1968 features a 41mm Titanium case. The Fixed bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-956ba4a0b8f6]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

10.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

200m

Dial Color

Silver

Jewels

27j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1968

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