Seiko Cal. 6377 - 504

The Seiko 6377-504 represents an important milestone in Seiko's 1976 lineup. Powered by the 6377 caliber with 23j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-13b920c0ab5d]

Also known as: Helmet, Arnie

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

45mm

Case Thickness

13.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Silver

Jewels

23j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1976

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