Seiko Cal. 4540 - 907

Seiko 4540-907

The 4540-907 is a sought-after Hand-Winding piece from Seiko's golden era. The Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-2a065afbab6b]

Also known as: Baby Tuna, Flighty

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
38mm
Case Thickness
14.8mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
130m
Dial Color
Champagne
Jewels
20j
Frequency
36,000 bph
Power Reserve
56 hours
Year
1966

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