Seiko Cal. 3858 - 690

The Seiko 3858-690 represents an important milestone in Seiko's 1965 lineup. Powered by the 3858 caliber with 31j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-8aa1f3051de0]

Also known as: Pogue, Helmet

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Cream

Jewels

31j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1965

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