Seiko Cal. 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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