Seiko Cal. 4451 - 671

The Seiko 4451-671 represents an important milestone in Seiko's 1978 lineup. Powered by the 4451 caliber with 21j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-cf6d820fdb0e]

Also known as: Rally, World Timer

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Burgundy

Jewels

21j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1978

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