Seiko Cal. 6647 - 613

This Spring Drive model from 1991 features a 41mm Titanium case. With its 19mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-f4790a097283]

Also known as: Sea Horse, Arnie

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

15.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1991

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