Seiko Cal. 3880 - 447

The Seiko 3880-447 represents an important milestone in Seiko's 1972 lineup. It features a Black dial protected by a Sapphire crystal and offers 130m of water resistance. [seikata-wm-49cca2c721ef]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Black

Jewels

34j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1972

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