Seiko Cal. 6337 - 623

Seiko 6337-623

This Automatic model from 1990 features a 40mm Hardlex-Coated Steel case. Powered by the 6337 caliber with 20j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-7a9bc384b6ed]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
12.2mm
Lug Width
18mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
70m
Dial Color
Burgundy
Jewels
20j
Frequency
36,000 bph
Power Reserve
42 hours
Year
1990

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