Seiko Cal. 3890 - 102

The Seiko 3890-102 represents an important milestone in Seiko's 1972 lineup. Powered by the 3890 caliber with 32j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-4bb10d170ffa]

Also known as: Helmet, Bellmatic

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

9.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1972

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