Seiko Cal. 3880 - 363

The Seiko 3880-363 represents an important milestone in Seiko's 1968 lineup. The Inner Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-e44034d0ff51]

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Green

Jewels

32j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1968

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