Seiko Cal. 3884 - 281

The Seiko 3884-281 represents an important milestone in Seiko's 1970 lineup. The Bidirectional bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-0a1aed591f9e]

Also known as: Sumo, UFO

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

10.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Burgundy

Jewels

20j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1970

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