Seiko Cal. 6647 - 729

Seiko 6647-729

This Hand-Winding model from 1981 features a 39mm Titanium case. Powered by the 6647 caliber with 19j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-3f6f866124f3]

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
39mm
Case Thickness
9.4mm
Lug Width
22mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
60m
Dial Color
Cream
Jewels
19j
Frequency
36,000 bph
Power Reserve
71 hours
Year
1981

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