Sub Second Automatic Watch Tandorio TD931A 39mm Sapphire Pilot ST1701 20ATM Stainless Steel Aged Black

The Tandorio TD931A Sub Second Automatic Watch is a 39mm pilot timepiece powered by the reliable Sea‑gull ST1701 automatic mechanical movement – featuring a classic sub‑second dial at 9 o'clock for a vintage aviation aesthetic. This Sub Second Automatic Watch is available in 316L stainless steel, PVD black, or aged finish options, offering versatile style for any collector. The sapphire crystal, screw‑down crown, and 20ATM (200m) water resistance ensure durability and reliability in any environment. With a black or white dial featuring green luminous markers, a 20mm leather strap, and a solid caseback, this Sub Second Automatic Watch delivers timeless pilot style with modern performance. Custom logo service available – please contact us to confirm details before ordering.

Full Spec List:

• Product: Sub Second Automatic Watch – Tandorio TD931A

• Movement: Sea‑gull ST1701 automatic mechanical

• Brand: Tandorio

• Crown: 3 o'clock screw‑down crown

• Case Diameter: 39mm (excluding crown)

• Lug to Lug: 48.6mm

• Case Thickness: 12mm

• Case Material Options: 316L stainless steel / PVD black / Aged finish

• Dial Colors: Black / White (green luminous markers)

• Glass: Sapphire crystal

• Caseback: Solid back

• Strap: 20mm leather strap with pin clasp

• Water Resistance: 20ATM (200 meters)

• Customization: Logo available – contact us before ordering

• Style: Vintage pilot / aviator

• Application: Ready‑to‑wear, custom builds, gifting