Seiko Cal. 3825 - 557

The Seiko 3825-557 represents an important milestone in Seiko's 1965 lineup. Powered by the 3825 caliber with 33j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-052ebb36e88d]

Also known as: Helmet, Sea Horse

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

8.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

60m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1965

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