Seiko Cal. 6645 - 984

Released in 1990, the Cal. 6645 with design code 984 was part of Seiko's domestic market collection. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-4e3379cc0ae3]

Also known as: Samurai, Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

37mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Champagne

Jewels

34j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1990

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