Seiko Cal. 3820 - 436

Released in 1979, the Cal. 3820 with design code 436 was part of Seiko's domestic market collection. It features a Cream dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-757b8fe4fa52]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

8.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Cream

Jewels

36j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1979

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