Seiko Cal. 3851 - 658

Released in 1971, the Cal. 3851 with design code 658 was part of Seiko's domestic market collection. Powered by the 3851 caliber with 31j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-1ff60339df37]

Also known as: Baby Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

41mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Burgundy

Jewels

31j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1971

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