Seiko Cal. 3817 - 650

The Seiko 3817-650 represents an important milestone in Seiko's 1985 lineup. Powered by the 3817 caliber with 26j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-aacc6bab937c]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

30m

Dial Color

Burgundy

Jewels

26j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1985

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