Seiko Cal. 3821 - 644

The Seiko 3821-644 represents an important milestone in Seiko's 1993 lineup. It features a Black dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-9c4cf982de4d]

Also known as: Navigator

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

8.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

50m

Dial Color

Black

Jewels

25j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1993

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