Seiko Cal. 7028 - 457

Seiko 7028-457

Released in 1990, the Cal. 7028 with design code 457 was part of Seiko's domestic market collection. It features a Green dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-3a20f84d64c7]

Also known as: Crown

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
8.9mm
Lug Width
20mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
60m
Dial Color
Green
Jewels
23j
Frequency
21,600 bph
Power Reserve
54 hours
Year
1990

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