Seiko Cal. 3856 - 574

The Seiko 3856-574 represents an important milestone in Seiko's 1966 lineup. Powered by the 3856 caliber with 24j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-81a776b179eb]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

13.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1966

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