Seiko Cal. 3820 - 365

The Seiko 3820-365 represents an important milestone in Seiko's 1975 lineup. It features a Black dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-23f9734b6f1a]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

34mm

Case Thickness

14.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

70m

Dial Color

Black

Jewels

34j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1975

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