Seiko Cal. 6681 - 391

The 6681-391 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-1fb8cef891f9]

Also known as: Sumo, Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1995

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