Quick Summary
The Optimum Time Series 3 is a yellow sailing watch with a race timer layout and a water-resistant case rated to 5 ATM. It includes a single row display, large 16 mm digit height and an adjustable viewing angle, making the display easy to read at a glance.
The watch also includes a pre-programmed 5,4,1,0 ISAF start sequence with audible warning signals, plus a countdown repeat option and a countdown and up function for elapsed time in handicap races.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Product type | Sailing watch with race timer functions. |
| Colour | Yellow. |
| Display size | 38 mm x 20 mm display size for a compact viewing area. |
| Digit height | 16 mm digit height for clear time reading. |
| Display layout | Single row display. |
| Mounting options | Boom/Mast Mount Bracket supplied, with an elasticated strap for wrist or over-sleeve wearing. |
| Start sequence | 5,4,1,0 ISAF start sequence is pre-programmed with audible warning signals. |
| Water resistance | Water resistant to 5 ATM. |
What to Compare Before Buying
- Display layout: This model uses a single row display with a 38 mm x 20 mm viewing area. Compare that with how quickly you want to read the timer during use.
- Race functions: The watch includes a pre-programmed 5,4,1,0 ISAF start sequence, countdown repeat and countdown plus up modes. Check that these are the timer functions you need.
- Wearing or mounting method: It comes with an elasticated strap and a boom or mast mount bracket. Consider whether wrist wear, over-sleeve wear or bracket mounting suits your setup.
- Water resistance: The case is rated to 5 ATM. Compare that rating with the conditions you expect the watch to face.
Compatibility, Size and Fit
The main fit points are the display size, the overall 65 mm ABS case and the wearing or mounting options. Check whether you want to wear it on the wrist, over a sleeve or use the supplied boom or mast bracket.
If display visibility matters, the adjustable viewing angle and 16 mm digit height are useful details to compare against your usual viewing position.
Before You Decide
Confirm that the yellow finish, 5,4,1,0 start sequence and race timer functions match what you need. Also check whether you want the strap, the boom or mast mount bracket, or both ways of using the watch. If water resistance matters, compare the stated 5 ATM rating with your intended conditions and follow the manufacturer’s instructions for use.






