Seiko Cal. 6681 - 556

Seiko 6681-556

This Hand-Winding model from 1973 features a 41mm Titanium case. Powered by the 6681 caliber with 25j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-884f7c6ec6d8]

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
41mm
Case Thickness
10.7mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
190m
Dial Color
Blue Sunburst
Jewels
25j
Frequency
21,600 bph
Power Reserve
44 hours
Year
1973

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