Seiko Cal. 5687 - 778

Seiko 5687-778

This Quartz model from 1989 features a 44mm Hardlex-Coated Steel case. Powered by the 5687 caliber with 35j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-a5e5172d4397]

Also known as: Silverwave, Sportsmatic

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
44mm
Case Thickness
10.6mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
100m
Dial Color
Cream
Jewels
35j
Frequency
21,600 bph
Power Reserve
48 hours
Year
1989

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seikata-wm-a5e5172d4397