Seiko Cal. 5687 - 877

This Spring Drive model from 1996 features a 39mm Hardlex-Coated Steel case. Powered by the 5687 caliber with 34j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-9a0bad9880e7]

Also known as: UFO, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

8.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Cream

Jewels

34j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1996

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