Seiko Cal. 4537 - 412

Seiko 4537-412

The 4537-412 is a sought-after Spring Drive piece from Seiko's golden era. The Bidirectional bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-c1241efc8a58]

Also known as: Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
45mm
Case Thickness
9.7mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
90m
Dial Color
White
Jewels
21j
Frequency
28,800 bph
Power Reserve
68 hours
Year
1965

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seikata-wm-c1241efc8a58