Seiko Cal. 3820 - 687

The Seiko 3820-687 represents an important milestone in Seiko's 1988 lineup. It features a Navy dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-2e518d348512]

Also known as: Emperor

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

10.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

60m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1988

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