Seiko Cal. 6377 - 633

The Seiko 6377-633 represents an important milestone in Seiko's 1983 lineup. Powered by the 6377 caliber with 17j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-b8fb2de632e3]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

8.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

Cream

Jewels

17j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1983

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