Seiko Cal. 4538 - 554

Seiko 4538-554

The 4538-554 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4538 caliber with 22j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-faa74096137a]

Also known as: Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
43mm
Case Thickness
14.9mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
70m
Dial Color
Navy
Jewels
22j
Frequency
21,600 bph
Power Reserve
62 hours
Year
1984

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