Seiko Cal. 3890 - 947

This Spring Drive model from 1998 features a 37mm Two-Tone case. Powered by the 3890 caliber with 19j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-84d3d80d514f]

Also known as: Turtle, Arnie

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

13.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Black

Jewels

19j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1998

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