Seiko Cal. 0740 - 755

Seiko 0740-755

The 0740-755 is a sought-after Quartz piece from Seiko's golden era. It features a Navy dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-086d12c6bc51]

Also known as: Helmet, Sportsmatic

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
34mm
Case Thickness
15.3mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
110m
Dial Color
Navy
Jewels
32j
Frequency
28,800 bph
Power Reserve
62 hours
Year
1981

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