Seiko Cal. 5280 - 557

Seiko 5280-557

The Seiko 5280-557 represents an important milestone in Seiko's 1996 lineup. Powered by the 5280 caliber with 21j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-cc4fbeb67a3c]

Also known as: Sumo, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
44mm
Case Thickness
8.5mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
120m
Dial Color
White
Jewels
21j
Frequency
28,800 bph
Power Reserve
52 hours
Year
1996

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