Seiko Cal. 0783 - 644

Seiko 0783-644

The 0783-644 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 0783 caliber with 30j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-54cf0cd6f73b]

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
45mm
Case Thickness
15.0mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
170m
Dial Color
Silver
Jewels
30j
Frequency
36,000 bph
Power Reserve
71 hours
Year
1978

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seikata-wm-54cf0cd6f73b