Seiko Cal. 5616 - 421

Seiko 5616-421

The Seiko 5616-421 represents an important milestone in Seiko's 1983 lineup. Powered by the 5616 caliber with 31j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-db6001e6a2bb]

Also known as: Monster, Sea Horse

Specifications

Movement
Quartz
Case Material
Gold-Plated
Case Width
44mm
Case Thickness
13.4mm
Lug Width
22mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
200m
Dial Color
Navy
Jewels
31j
Frequency
21,600 bph
Power Reserve
68 hours
Year
1983

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