Seiko - Speedtimer Countdown Timer Black Dial - SPB515

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Dial Ring
By operating the 4 o'clock crown, a countdown timer function can be used to measure key intervals in motorsports competitions as well as daily uses, such as the time remaining. Despite its compact, comfortable size, it achieves high reliability and durability.

Dial
The orange accent that appears on the dial ring is also used for the seconds hand to enhance legibility during instantaneous measurements. The seconds markers evoke a mechanical heartbeat and express classical beauty.

Bracelet
The streamlined case design and the elegant style of the bracelet inherit the characteristic design of a Speedtimer chronograph introduced in 1972, further emphasizing the ‘70s vintage aesthetic. The multi-row bracelet allows the watch to sit securely and comfortably on the wrist.

Movement
Caliber Number: 6R55
Movement Type: Automatic with manual winding
Precision: +25 to -15 seconds per day
Power reserve: Approx. 72 hours(3 days)
Jewels: 24
Functions: Stop second hand function

Case / Band
Case Material: Stainless steel (super hard coating)
Case Size
Thickness: 12 mm
Diameter: 39.5 mm
Lug-to-lug: 44.5 mm
Crystal: Curved sapphire crystal
Crystal Coating: Anti-reflective coating on inner surface
Clasp: Three-fold clasp with push button release
Bracelet Length: 197
Distance between lugs: 20 mm

Other Details
Water Resistance: 20 bar
Magnetic Resistance: 4,800 A/m
Weight: 154 g
Features: Screw case back

SPB515 Seiko
Seiko SPB515