Seiko Cal. 6641 - 671

The 6641-671 is a sought-after Spring Drive piece from Seiko's golden era. With its 20mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-ec38f9cc5956]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

White

Jewels

24j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1992

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