Seiko Cal. 6144 - 677

The Seiko 6144-677 represents an important milestone in Seiko's 1978 lineup. Powered by the 6144 caliber with 26j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-f283572cbd11]

Also known as: Helmet, Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

9.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

Cream

Jewels

26j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1978

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