Seiko Cal. 5245 - 557

Seiko 5245-557

The Seiko 5245-557 represents an important milestone in Seiko's 1971 lineup. Powered by the 5245 caliber with 24j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-bff9482633f5]

Also known as: Helmet, Sportsmatic

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
38mm
Case Thickness
15.7mm
Lug Width
22mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
180m
Dial Color
Blue Sunburst
Jewels
24j
Frequency
36,000 bph
Power Reserve
69 hours
Year
1971

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