Seiko Cal. 3815 - 155

The 3815-155 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3815 caliber with 36j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-69c8ac98149d]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

8.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Navy

Jewels

36j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1996

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