Seiko Cal. 6646 - 538

Seiko 6646-538

This Hand-Winding model from 1975 features a 46mm Stainless Steel case. Powered by the 6646 caliber with 34j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-d86e7b2fb758]

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
46mm
Case Thickness
15.1mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
70m
Dial Color
Silver
Jewels
34j
Frequency
28,800 bph
Power Reserve
39 hours
Year
1975

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seikata-wm-d86e7b2fb758