Seiko Cal. 4438 - 571

Seiko 4438-571

The 4438-571 is a sought-after Solar piece from Seiko's golden era. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-7ce2a75f54d3]

Also known as: Baby Tuna

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
12.1mm
Lug Width
21mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
180m
Dial Color
Burgundy
Jewels
17j
Frequency
21,600 bph
Power Reserve
63 hours
Year
1968

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