Seiko Cal. 3870 - 404

The Seiko 3870-404 represents an important milestone in Seiko's 1975 lineup. It features a Burgundy dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-de5d47c50634]

Also known as: Turtle, Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

13.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

20j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1975

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