Rotary Mens GB00231-01 The Mens Two Tone Watch GB00231-01 is a great example of the Rotary watch range. You can buy with confidence that your GB00231-01 Mens Two Tone Watch is fully covered by the official Rotary warranty. £62.28 / €74.74 / $98.41 (view offers) Shop for Rotary Rotary Watches GB00231-01 Mens Two Tone Watch