Seiko Cal. 4540 - 275

Seiko 4540-275

The 4540-275 is a sought-after Quartz piece from Seiko's golden era. The Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-604df2e9b6fd]

Also known as: Sumo, Golden Tuna

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
8.9mm
Lug Width
21mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
120m
Dial Color
Burgundy
Jewels
27j
Frequency
36,000 bph
Power Reserve
66 hours
Year
1982

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