Seiko Cal. 7138 - 440

Seiko 7138-440

The 7138-440 is a sought-after Automatic piece from Seiko's golden era. The Inner Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-5655c633f522]

Also known as: Baby Tuna

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
43mm
Case Thickness
9.1mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
110m
Dial Color
Champagne
Jewels
26j
Frequency
28,800 bph
Power Reserve
42 hours
Year
1981

Related Models

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