Seiko Cal. 7087 - 639

Seiko 7087-639

The Seiko 7087-639 represents an important milestone in Seiko's 1987 lineup. Powered by the 7087 caliber with 18j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-fbf9372aca1f]

Also known as: Shogun, Baby Tuna

Specifications

Movement
Solar
Case Material
PVD Black
Case Width
37mm
Case Thickness
13.4mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
60m
Dial Color
Champagne
Jewels
18j
Frequency
21,600 bph
Power Reserve
48 hours
Year
1987

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