Seiko Cal. 0721 - 819

Seiko 0721-819

The Seiko 0721-819 represents an important milestone in Seiko's 1973 lineup. Powered by the 0721 caliber with 31j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-448ca0a98d25]

Also known as: Helmet

Specifications

Movement
Solar
Case Material
PVD Black
Case Width
40mm
Case Thickness
11.9mm
Lug Width
20mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
50m
Dial Color
Cream
Jewels
31j
Frequency
28,800 bph
Power Reserve
72 hours
Year
1973

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seikata-wm-448ca0a98d25