Seiko Cal. 4540 - 828

Seiko 4540-828

The 4540-828 is a sought-after Hand-Winding piece from Seiko's golden era. The Inner Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-da20ead81a58]

Also known as: Sumo, Golden Tuna

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
39mm
Case Thickness
11.6mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
120m
Dial Color
Burgundy
Jewels
19j
Frequency
28,800 bph
Power Reserve
55 hours
Year
1984

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seikata-wm-da20ead81a58