Seiko Cal. 3890 - 997

The 3890-997 is a sought-after Solar piece from Seiko's golden era. Powered by the 3890 caliber with 21j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-f24d3c837381]

Also known as: Turtle, Sumo

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

15.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Silver

Jewels

21j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1988

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