Seiko Cal. 6645 - 724

The Seiko 6645-724 represents an important milestone in Seiko's 1982 lineup. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-96be17163862]

Also known as: Turtle, Bullhead

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1982

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