Seiko Cal. 3812 - 465

The 3812-465 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3812 caliber with 27j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-c1f0329e5c80]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

12.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

40m

Dial Color

White

Jewels

27j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1970

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