Seiko Cal. 5688 - 988

Seiko 5688-988

This Quartz model from 1969 features a 36mm Hardlex-Coated Steel case. The Bidirectional bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-1bebb5a86947]

Also known as: Tuna, Golden Tuna

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
15.7mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
40m
Dial Color
Silver
Jewels
21j
Frequency
28,800 bph
Power Reserve
37 hours
Year
1969

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seikata-wm-1bebb5a86947