Seiko Cal. 6699 - 644

The Seiko 6699-644 represents an important milestone in Seiko's 1984 lineup. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-f2892f7748b5]

Also known as: Helmet, Silverwave

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

37mm

Case Thickness

11.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

White

Jewels

24j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1984

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