Seiko Cal. 6644 - 317

This Hand-Winding model from 1965 features a 40mm Titanium case. With its 19mm lug width and 8.1mm profile, it sits comfortably on most wrists. [seikata-wm-e69a91a1a79b]

Also known as: Arnie

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

8.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Burgundy

Jewels

22j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1965

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