Seiko Cal. 6687 - 648

Seiko 6687-648

This Automatic model from 1985 features a 36mm Gold-Plated case. Powered by the 6687 caliber with 36j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-a76f9194aaed]

Also known as: Sumo, Golden Tuna

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
36mm
Case Thickness
14.0mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
70m
Dial Color
Silver
Jewels
36j
Frequency
21,600 bph
Power Reserve
57 hours
Year
1985

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