Seiko Cal. 6687 - 321

Seiko 6687-321

This Quartz model from 1984 features a 41mm Hardlex-Coated Steel case. Powered by the 6687 caliber with 22j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-79f3c266acd1]

Also known as: Sportsmatic

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
8.8mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
140m
Dial Color
Black
Jewels
22j
Frequency
28,800 bph
Power Reserve
69 hours
Year
1984

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