Seiko Cal. 3820 - 448

The 3820-448 is a sought-after Spring Drive piece from Seiko's golden era. It features a Navy dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-3961e04c9b90]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

180m

Dial Color

Navy

Jewels

35j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1983

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