Seiko Cal. 3820 - 351

The 3820-351 is a sought-after Spring Drive piece from Seiko's golden era. It features a Silver dial protected by a Acrylic crystal and offers 30m of water resistance. [seikata-wm-802109aaecc3]

Also known as: Crown, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

15.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

30m

Dial Color

Silver

Jewels

21j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1977

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