Seiko Cal. 3857 - 152

The Seiko 3857-152 represents an important milestone in Seiko's 1965 lineup. Powered by the 3857 caliber with 23j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-6c94c4bb1fee]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

44mm

Case Thickness

14.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Green

Jewels

23j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1965

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