Seiko Cal. 3875 - 681

The Seiko 3875-681 represents an important milestone in Seiko's 1966 lineup. With its 20mm lug width and 13.7mm profile, it sits comfortably on most wrists. [seikata-wm-b7d20b63d86a]

Also known as: Sumo, Emperor

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

13.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

21j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1966

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