Seiko Cal. 5658 - 185

The Seiko 5658-185 represents an important milestone in Seiko's 1974 lineup. Powered by the 5658 caliber with 31j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-cc5b043ce5f9]

Also known as: UFO, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

8.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

140m

Dial Color

White

Jewels

31j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1974

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