Seiko Cal. 3865 - 390

The Seiko 3865-390 represents an important milestone in Seiko's 1984 lineup. It features a Navy dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-0c2f94ee2f19]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

10.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Navy

Jewels

23j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1984

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