Seiko Cal. 6641 - 693

The 6641-693 is a sought-after Hand-Winding piece from Seiko's golden era. With its 22mm lug width and 11.8mm profile, it sits comfortably on most wrists. [seikata-wm-9026bb04ab5a]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

White

Jewels

36j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1988

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