Seiko Cal. 6277 - 636

The 6277-636 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6277 caliber with 20j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-760834be8321]

Also known as: Sumo, Bellmatic

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

170m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1981

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