TOPHILL TL025G 40mm ST1901 Hand-Wound Racing Chronograph

TOPHILL TL025G 40mm ST1901 Hand-Wound Racing Chronograph

The TOPHILL TL025G is a 40mm hand-wound racing chronograph with a contrasting subdial layout and a tachymeter scale. Its sports-inspired dial and mechanical movement make it a distinctive option for buyers who enjoy elapsed-time functions and traditional crown winding.

Mechanical movement

A Seagull ST1901 manual-wind column-wheel chronograph movement powers the watch. It runs without a battery and needs regular winding through the crown. The chronograph can measure elapsed time separately from the main time display, while the tachymeter scale provides a reference for average speed over a known distance.

Case and materials

The case is made from 316L stainless steel and has a listed thickness of 12.4mm. Flat sapphire crystal protects the front. A screw-down exhibition caseback with a mineral-glass window provides a view of the hand-wound movement.

Dial and wearing details

The panda-style arrangement separates the subdials visually from the main dial. Applied markers and luminous hands support legibility after exposure to light. Several model codes are offered, each linked to its own product image so the visual combination can be selected directly.

Everyday use and care

The stated water resistance is 5ATM / 50M. Follow the supplied instructions for winding and use of the timing pushers. Select the exact model code to match the photographed configuration, and compare the case dimensions with a watch you already wear when assessing fit.

Technical specifications

• Brand: TOPHILL
• Model: TL025G
• Movement: Seagull ST1901 manual-wind chronograph
• Case diameter: 40mm
• Case thickness: 12.4mm
• Front crystal: Flat sapphire crystal
• Water resistance: 5ATM / 50M

Frequently asked questions

What does the tachymeter scale do?
It is used with the chronograph to estimate average speed over a known distance. The watch itself uses a Seagull ST1901 hand-wound mechanical movement.