Seiko Cal. 6641 - 199

The Seiko 6641-199 represents an important milestone in Seiko's 1969 lineup. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-70ce24192414]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Burgundy

Jewels

36j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1969

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