Seiko Cal. 4428 - 738

Seiko 4428-738

The 4428-738 is a sought-after Solar piece from Seiko's golden era. With its 21mm lug width and 9.9mm profile, it sits comfortably on most wrists. [seikata-wm-c87bf5941604]

Also known as: Golden Tuna

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
44mm
Case Thickness
9.9mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
190m
Dial Color
Champagne
Jewels
20j
Frequency
36,000 bph
Power Reserve
62 hours
Year
1971

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