Seiko Cal. 6328 - 451

The Seiko 6328-451 represents an important milestone in Seiko's 1966 lineup. Powered by the 6328 caliber with 28j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-9a846f57d67b]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

11.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Cream

Jewels

28j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1966

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