Seiko Cal. 6640 - 271

The Seiko 6640-271 represents an important milestone in Seiko's 1980 lineup. It features a Burgundy dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-492962804a1a]

Also known as: Samurai, Sportsmatic

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

13.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Burgundy

Jewels

24j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1980

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