Seiko Cal. 6144 - 639

The Seiko 6144-639 represents an important milestone in Seiko's 1985 lineup. It features a Black dial protected by a Mineral crystal and offers 80m of water resistance. [seikata-wm-781e5be302c1]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

44mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

80m

Dial Color

Black

Jewels

19j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1985

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