Seiko Cal. 6644 - 634

This Hand-Winding model from 1967 features a 46mm Titanium case. The Coin-Edge bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-91b4ffa3a111]

Also known as: Rally

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

46mm

Case Thickness

8.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1967

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