Seiko Cal. 3870 - 763

The 3870-763 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Champagne dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-5a58354ec300]

Also known as: Rally, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

13.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Champagne

Jewels

18j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1987

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