Seiko Cal. 6687 - 740

Seiko 6687-740

This Automatic model from 1997 features a 45mm Hardlex-Coated Steel case. The Bidirectional bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-07ea055e4ef2]

Also known as: Bullhead, Silverwave

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
11.8mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
140m
Dial Color
Silver
Jewels
36j
Frequency
36,000 bph
Power Reserve
53 hours
Year
1997

Related Models

seikata-wm-07ea055e4ef2