Seiko Cal. 3840 - 418

Seiko 3840-418

The 3840-418 is a sought-after Quartz piece from Seiko's golden era. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-88b5e337a1e8]

Also known as: Monster, Silverwave

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
37mm
Case Thickness
13.1mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
190m
Dial Color
Green
Jewels
26j
Frequency
21,600 bph
Power Reserve
56 hours
Year
1972

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