Seiko Cal. 3878 - 704

The Seiko 3878-704 represents an important milestone in Seiko's 1979 lineup. It features a Silver dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-ac9610b91583]

Also known as: Sumo, Silverwave

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Silver

Jewels

31j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1979

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