Seiko Cal. 4418 - 348

Seiko 4418-348

The 4418-348 is a sought-after Automatic piece from Seiko's golden era. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-6d6cc5e2318f]

Also known as: Tuna, Helmet

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
40mm
Case Thickness
11.7mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
170m
Dial Color
Black
Jewels
32j
Frequency
36,000 bph
Power Reserve
68 hours
Year
1975

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