Seiko Cal. 3880 - 975

The Seiko 3880-975 represents an important milestone in Seiko's 1979 lineup. It features a Green dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-1a0c10d0b2ea]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

8.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1979

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