Seiko Cal. 3815 - 348

The Seiko 3815-348 represents an important milestone in Seiko's 1981 lineup. Powered by the 3815 caliber with 31j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-cc3a094228d6]

Also known as: Sumo, Navigator

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

13.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Silver

Jewels

31j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1981

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