Seiko Cal. 3812 - 440

The 3812-440 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3812 caliber with 33j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-6e4b458d415a]

Also known as: Rally, Bellmatic

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

42mm

Case Thickness

12.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1965

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