Seiko Cal. 3812 - 646

Released in 1977, the Cal. 3812 with design code 646 was part of Seiko's domestic market collection. Powered by the 3812 caliber with 26j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-19ecc5ac4af7]

Also known as: Sea Horse

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1977

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