Seiko Cal. 6377 - 830

The 6377-830 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6377 caliber with 26j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-32c555333ea4]

Also known as: Sumo, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Burgundy

Jewels

26j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1973

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