Seiko Cal. 6233 - 820

This Spring Drive model from 1976 features a 45mm PVD Black case. Powered by the 6233 caliber with 29j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-bc70dcdd4c08]

Also known as: Sumo, Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

12.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1976

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