Seiko Cal. 6351 - 328

The Seiko 6351-328 represents an important milestone in Seiko's 1976 lineup. Powered by the 6351 caliber with 23j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-512e3afc4443]

Also known as: Sumo, Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

11.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Burgundy

Jewels

23j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1976

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