Seiko Cal. 3864 - 637

This Hand-Winding model from 1986 features a 40mm Titanium case. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-66d134d1f24b]

Also known as: Navigator

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

8.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1986

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