Seiko Cal. 6681 - 630

Seiko 6681-630

This Solar model from 1979 features a 37mm Stainless Steel case. Powered by the 6681 caliber with 18j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-6fa5cec1ed43]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement
Solar
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
10.2mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
120m
Dial Color
Black
Jewels
18j
Frequency
28,800 bph
Power Reserve
62 hours
Year
1979

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