---
product_id: 61326933
title: "Sailing Watch OS11 Sailing Watch"
brand: "optimum time"
price: "NT$4052"
currency: TWD
in_stock: true
reviews_count: 8
category: "Optimum Time"
url: https://www.desertcart.tw/products/61326933-sailing-watch-os11-sailing-watch
store_origin: TW
region: Taiwan
---

# Waterproof up to sailing standards Customizable alarm alerts Precision countdown & stopwatch Sailing Watch OS11 Sailing Watch

**Brand:** optimum time
**Price:** NT$4052
**Availability:** ✅ In Stock

## Summary

> ⏳ Navigate time like a pro — never miss the perfect start!

## Quick Answers

- **What is this?** Sailing Watch OS11 Sailing Watch by optimum time
- **How much does it cost?** NT$4052 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/61326933-sailing-watch-os11-sailing-watch)

## Best For

- optimum time enthusiasts

## Why This Product

- Trusted optimum time brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Race-Ready Countdown:** Master every regatta start with precision timing.
- • **Waterproof Durability:** Designed to withstand splashes and full immersion during water sports.
- • **Sunlight-Visible Display:** Stay on course with a bright backlit digital screen.
- • **Lightweight & Comfortable:** Strap-style design weighing just 110g for all-day wear on deck.
- • **Multi-Function Sailing Modes:** Switch seamlessly between stopwatch, countdown, and sailing sequences.

## Overview

The Optimum Time OS11 Sailing Watch is a digital, battery-powered timepiece designed for adult sailors and water sports enthusiasts. Featuring waterproof construction, a bright backlit display, and multifunctional sailing timers including countdown and stopwatch modes, it ensures precision and durability on every voyage. Lightweight and equipped with an alarm, this green strap watch combines practical sailing functions with everyday usability.

## Description

The Series 11 race timer is perfect for novice sailors looking for both functionality and wearability. Its smaller display size makes it perfect for also wearing on land. It boasts all the necessary timing functions alongside our essential sync button which synchronises your countdown to the race control timer ensuring you won’t miss the gun. FEATURES ABS case with integrated soft-touch PU strap Heavy-duty stainless steel buckle 26mm diameter display size Single row display with 10mm digit height Water-resistant to 5 ATM Shock-resistant construction Calendar function (date/month or month/date) Alarm function Electro-luminescent backlight feature TIMER FUNCTIONS Normal timekeeping mode (12 or 24 Hours) Pre-programmed 5 4 1 0 ISAF start sequences or 5 min 3 min and 1 min programs with audible alarms (can be silenced if preferred) Countdown & repeat or countdown and up Sync button for instant synchronisation if a gun is missed Count-up from zero

Review: Race officer,s dream watch - This is a dream watch it not only works as a normal watch,but it's a brilliant race officer and sailor watch,I can't fault it 👏
Review: Very poor watch - This is a waste of money and time ordering it. The watch turned up loose in jiffy bag with no instruction manual, guarantee.....and the watch strap was damaged and aged, so was the watch screen and it didn't even work (unable to use the buttons). Refund quested straight away.

## Features

- Waterproof
- Water Resistant
- Alarm

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00GAW8L4O |
| Age Range Description | Adult |
| Band Colour | Green |
| Band Material Type | Acrylonitrile Butadiene Styrene, Polyurethane, Stainless Steel |
| Band Width | 26 Millimetres |
| Brand Name | Optimum Time |
| Case Diameter | 26 Millimetres |
| Case Material Type | Stainless Steel |
| Case Thickness | 10 Millimetres |
| Character | Fashion |
| Clasp Type | Lobster Claw Clasp |
| Closure Type | Buckle |
| Country Of Origin | China |
| Crystal | Acrylic |
| Customer Reviews | 3.2 out of 5 stars 70 Reviews |
| Dial Color | green |
| Display | Digital |
| Embellishment Feature | Stud |
| Face Style | Modern |
| Global Trade Identification Number | 05060269670685 |
| Item Shape | Tonneau |
| Manufacturer | Optimum Time |
| Manufacturer Part Number | OS1128 |
| Model Name | Os1128 |
| Model Number | OS1128 |
| Power Source | Battery Powered |
| Special Features | Alarm, Water Resistant, Waterproof |
| Sport Type | Running |
| Strap Type | Rubber strap |
| Style Name | Strap. |
| Watch Movement Type | Quartz |
| Water Resistance Depth | 50 Metres |

## Images

![Sailing Watch OS11 Sailing Watch - Image 1](https://m.media-amazon.com/images/I/61vanUlU6TL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Race officer,s dream watch
*by D***I on 5 September 2021*

This is a dream watch it not only works as a normal watch,but it's a brilliant race officer and sailor watch,I can't fault it 👏

### ⭐ Very poor watch
*by J***. on 21 April 2023*

This is a waste of money and time ordering it. The watch turned up loose in jiffy bag with no instruction manual, guarantee.....and the watch strap was damaged and aged, so was the watch screen and it didn't even work (unable to use the buttons). Refund quested straight away.

### ⭐⭐⭐⭐ Four Stars
*by P***O on 11 February 2016*

Nice product, buttons a bit too hard to press with sailing gloves on

## Frequently Bought Together

- Optimum Time Sailing Watch OS11 Sailing Watch
- LITTLE HAWK MK2 APPARENT WIND INDICATOR (for Dinghies up to 6m) - mounts at front of mast at gooseneck height
- The Rules in Practice 2025-2028: The Guide to the Rules of Sailing Around the Racecourse

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**Shop now:** [https://www.desertcart.tw/products/61326933-sailing-watch-os11-sailing-watch](https://www.desertcart.tw/products/61326933-sailing-watch-os11-sailing-watch)

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-05-22*