Seiko Cal. 3817 - 988

The 3817-988 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3817 caliber with 18j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-20220db28b3f]

Also known as: Panda, Bullhead

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

13.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

60m

Dial Color

Black

Jewels

18j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1986

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