Seiko Cal. 3854 - 312

The Seiko 3854-312 represents an important milestone in Seiko's 1990 lineup. With its 21mm lug width and 11.5mm profile, it sits comfortably on most wrists. [seikata-wm-706f0dec9714]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

11.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1990

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