Seiko Cal. 6189 - 931

The 6189-931 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6189 caliber with 18j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-c7266dbe5a2e]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Green

Jewels

18j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1990

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