Seiko Cal. 3854 - 626

The Seiko 3854-626 represents an important milestone in Seiko's 1966 lineup. Powered by the 3854 caliber with 27j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-ef6ad0bc8d75]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

36mm

Case Thickness

10.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

White

Jewels

27j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1966

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