Seiko Cal. 3866 - 587

The 3866-587 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-d33c4ae44acc]

Also known as: Sumo, Bullhead

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1972

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