Seiko Cal. 5687 - 400

The 5687-400 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5687 caliber with 23j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-bf06408f7002]

Also known as: Monster, World Timer

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

15.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

60m

Dial Color

Silver

Jewels

23j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1982

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