Seiko Cal. 6377 - 339

The 6377-339 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6377 caliber with 36j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-afc6b0ccb4fb]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Burgundy

Jewels

36j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1966

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