Seiko Cal. 6645 - 359

The Seiko 6645-359 represents an important milestone in Seiko's 1998 lineup. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-22bcdd67427e]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

14.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1998

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