Seiko Cal. 3873 - 686

Released in 1965, the Cal. 3873 with design code 686 was part of Seiko's domestic market collection. It features a Champagne dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-06b6b5dd4dd7]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Champagne

Jewels

27j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1965

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