Seiko Cal. 5690 - 385

The Seiko 5690-385 represents an important milestone in Seiko's 1992 lineup. Powered by the 5690 caliber with 31j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-b1634764ef7e]

Also known as: Monster, Bullhead

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

11.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

31j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1992

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