Seiko Cal. 6641 - 161

This Hand-Winding model from 1974 features a 46mm Titanium case. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-a5d817ad7462]

Also known as: Silverwave, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

46mm

Case Thickness

14.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1974

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