Seiko Cal. 6645 - 712

Released in 1992, the Cal. 6645 with design code 712 was part of Seiko's domestic market collection. It features a Green dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-be43216fcf74]

Also known as: Emperor

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

9.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Green

Jewels

20j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1992

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