Seiko Cal. 3880 - 398

The Seiko 3880-398 represents an important milestone in Seiko's 1973 lineup. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-a3885da000a2]

Also known as: Sumo, Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

10.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Silver

Jewels

32j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1973

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