Seiko Cal. 3817 - 261

The Seiko 3817-261 represents an important milestone in Seiko's 1969 lineup. Powered by the 3817 caliber with 17j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-bae871129b23]

Also known as: Arnie

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Navy

Jewels

17j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1969

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