Seiko Cal. 3815 - 412

The Seiko 3815-412 represents an important milestone in Seiko's 1968 lineup. Powered by the 3815 caliber with 22j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-ee8f9006f1da]

Also known as: Arnie

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

41mm

Case Thickness

8.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Cream

Jewels

22j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1968

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