Seiko Cal. 4439 - 991

Seiko 4439-991

The 4439-991 is a sought-after Solar piece from Seiko's golden era. The Bidirectional bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-3e4aa0891cca]

Also known as: Baby Tuna, Arnie

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
38mm
Case Thickness
11.5mm
Lug Width
22mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
40m
Dial Color
Navy
Jewels
36j
Frequency
28,800 bph
Power Reserve
39 hours
Year
1989

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