Seiko Cal. 5254 - 640

Seiko 5254-640

The 5254-640 is a sought-after Hand-Winding piece from Seiko's golden era. The Bidirectional bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-71a6f891cc22]

Also known as: Baby Tuna, Flighty

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
39mm
Case Thickness
9.5mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
110m
Dial Color
Blue Sunburst
Jewels
17j
Frequency
28,800 bph
Power Reserve
61 hours
Year
1989

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