Seiko Cal. 3870 - 260

This Spring Drive model from 1970 features a 44mm Two-Tone case. It features a Silver dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-d53ba9d8e827]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Silver

Jewels

20j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1970

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