Seiko Cal. 6644 - 645

Released in 1995, the Cal. 6644 with design code 645 was part of Seiko's domestic market collection. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-ab13124abee0]

Also known as: Monster

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Champagne

Jewels

32j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1995

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