Seiko Cal. 4438 - 231

Seiko 4438-231

The 4438-231 is a sought-after Quartz piece from Seiko's golden era. The Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-4cf479094147]

Also known as: Tuna, Arnie

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
42mm
Case Thickness
11.2mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
80m
Dial Color
Blue Sunburst
Jewels
34j
Frequency
28,800 bph
Power Reserve
40 hours
Year
1976

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