Seiko Cal. 6389 - 100

The 6389-100 is a sought-after Solar piece from Seiko's golden era. Powered by the 6389 caliber with 29j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-9f8cfb13b7b9]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Titanium

Case Width

38mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

180m

Dial Color

Cream

Jewels

29j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1989

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