Seiko Cal. 4418 - 642

Seiko 4418-642

The 4418-642 is a sought-after Solar piece from Seiko's golden era. Powered by the 4418 caliber with 18j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-80ee288f7efb]

Also known as: Baby Tuna

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
10.0mm
Lug Width
21mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
120m
Dial Color
Blue Sunburst
Jewels
18j
Frequency
36,000 bph
Power Reserve
61 hours
Year
1989

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