Seiko Cal. 3863 - 999

The 3863-999 is a sought-after Automatic piece from Seiko's golden era. It features a Burgundy dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-cb15b9460a56]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

Burgundy

Jewels

25j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1967

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