Seiko Cal. 4521 - 872

Seiko 4521-872

The Seiko 4521-872 represents an important milestone in Seiko's 1970 lineup. Powered by the 4521 caliber with 19j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-45f502d2194b]

Also known as: Monster

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
44mm
Case Thickness
8.0mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
70m
Dial Color
Silver
Jewels
19j
Frequency
28,800 bph
Power Reserve
55 hours
Year
1970

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seikata-wm-45f502d2194b