Seiko Cal. 3864 - 563

This Automatic model from 1978 features a 40mm Two-Tone case. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-f22f3bbbca7e]

Also known as: Tuna, Crown

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

13.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1978

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