Seiko Cal. 6639 - 253

Seiko 6639-253

This Spring Drive model from 1993 features a 40mm Hardlex-Coated Steel case. With its 21mm lug width and 11.2mm profile, it sits comfortably on most wrists. [seikata-wm-2ac3f545d9fd]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
11.2mm
Lug Width
21mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
120m
Dial Color
White
Jewels
20j
Frequency
21,600 bph
Power Reserve
44 hours
Year
1993

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