Seiko Cal. 6687 - 757

Seiko 6687-757

This Spring Drive model from 1969 features a 41mm Hardlex-Coated Steel case. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-49c19ebeff48]

Also known as: Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
8.1mm
Lug Width
20mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
90m
Dial Color
Cream
Jewels
27j
Frequency
28,800 bph
Power Reserve
54 hours
Year
1969

Related Models

seikata-wm-49c19ebeff48