Seiko Cal. 5275 - 640

Seiko 5275-640

The 5275-640 is a sought-after Quartz piece from Seiko's golden era. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-216f830aa18b]

Also known as: Golden Tuna

Specifications

Movement
Quartz
Case Material
Titanium
Case Width
45mm
Case Thickness
15.0mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
40m
Dial Color
Navy
Jewels
31j
Frequency
36,000 bph
Power Reserve
59 hours
Year
1965

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