Seiko Cal. 6660 - 740

Seiko 6660-740

The Seiko 6660-740 represents an important milestone in Seiko's 1984 lineup. It features a Champagne dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-4541e21a390a]

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
8.4mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
40m
Dial Color
Champagne
Jewels
25j
Frequency
28,800 bph
Power Reserve
72 hours
Year
1984

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