Seiko Cal. 4521 - 667

Seiko 4521-667

The Seiko 4521-667 represents an important milestone in Seiko's 1983 lineup. Powered by the 4521 caliber with 20j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-e6a916e35f8d]

Also known as: Golden Tuna

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
14.6mm
Lug Width
19mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
100m
Dial Color
Navy
Jewels
20j
Frequency
36,000 bph
Power Reserve
63 hours
Year
1983

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