Seiko Cal. 6328 - 321

This Spring Drive model from 1988 features a 37mm Gold-Plated case. Powered by the 6328 caliber with 33j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-1169649a183d]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

15.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Black

Jewels

33j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1988

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