Seiko Cal. 6389 - 904

The 6389-904 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6389 caliber with 31j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-da704d1a74a2]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

46mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1968

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