Seiko Cal. 6642 - 620

The 6642-620 is a sought-after Spring Drive piece from Seiko's golden era. The Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-2cf81cc7fbf3]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

12.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1991

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