Seiko Cal. 6649 - 344

The Seiko 6649-344 represents an important milestone in Seiko's 1987 lineup. It features a Black dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-a5571ff515a2]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

9.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Black

Jewels

24j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1987

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