Seiko Cal. 6291 - 428

The Seiko 6291-428 represents an important milestone in Seiko's 1972 lineup. Powered by the 6291 caliber with 27j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-3309f9d24036]

Also known as: Baby Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

30m

Dial Color

White

Jewels

27j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1972

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