Seiko Cal. 4521 - 371

Seiko 4521-371

The 4521-371 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4521 caliber with 28j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-6fa6784abda1]

Also known as: Turtle

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
46mm
Case Thickness
14.4mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
50m
Dial Color
Blue Sunburst
Jewels
28j
Frequency
36,000 bph
Power Reserve
62 hours
Year
1983

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