Seiko Cal. 3863 - 691

Released in 1977, the Cal. 3863 with design code 691 was part of Seiko's domestic market collection. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-935ccb32bb39]

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

12.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1977

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