Seiko Cal. 0740 - 371

Seiko 0740-371

The Seiko 0740-371 represents an important milestone in Seiko's 1966 lineup. With its 21mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-450ff6351550]

Also known as: Sumo

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
15.8mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
110m
Dial Color
Black
Jewels
32j
Frequency
21,600 bph
Power Reserve
68 hours
Year
1966

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seikata-wm-450ff6351550