Seiko Cal. 3870 - 242

The Seiko 3870-242 represents an important milestone in Seiko's 1967 lineup. It features a Cream dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-2a3d355666b5]

Also known as: Rally, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

15.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Cream

Jewels

22j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1967

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