Seiko Cal. 3820 - 436

The Seiko 3820-436 represents an important milestone in Seiko's 1985 lineup. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-04998275453f]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Champagne

Jewels

30j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1985

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