Seiko Cal. 3866 - 160

The 3866-160 is a sought-after Quartz piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-9790595d1e9d]

Also known as: Monster, Sportsmatic

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

9.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1970

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