Bremont Supermarine S300 Blue Dial S300/BL/BR

Bremont's first dive watch was the Supermarine S500, was introduced in 2009 as a robust and beautifully engineered diver inspired by the British Watchmakers Aviation principles. In 2017 the S300 was released, in response to a demand for a more manageable size for smaller wrists, or those with a preference for a classically sized diver.

It utilises a 40mm case in steel with Bremont's Trip-Tick three-part case construction, with brushed steel for the lugs and a DLC coated mid-case. Surrounding it is a luminous 120-click bezel, and it's water resistant to 300m. Within this case lies a shimmering sunburst blue dial with large luminous markers. It is topped with luminous hour and minute hands, and powering it is a Chronometer spec BE-92AE (ETA 2892)  automatic movement. To top it off it's mounted to Bremont's excellent steel bracelet.

This particular piece would likely date from 2018 and presents in TZ 'Good' condition. The case is largely free of marks, with a small scrape/ding on the end of the lower right lug being the reason for the 'Good' grading rather than 'Excellent'. Crystal has a couple of small scratches near 1. Please see images for full condition details.

Mounted to a Bremont bracelet with enough links to suit a 7.2in wrist roughly. No spare links. Bracelet shows desk diving marks, and some marks on and around the screw heads on some links.

No service history. Currently running at around -9 secs a day at very high 200's amplitude.

Includes outer box (glue has come off on one of the flaps), leather inner case, Chronometer booklets, Chronometer certificate/warranty card dated 2018 (expired), luggage tag and Watch Vault cleaning cloth.

Last known RRP was $5,750, so grab yourself a bargain.


Brand: Bremont

Model #: S300/BL/BR

Style: Dive

Circa: 2018

Case Material: Stainless Steel

Case details: 40mm

Bracelet: Bremont Steel

Movement: Bremont caliber BE-92AE automatic chronometer

Dial: Blue

Hands: Super-Luminova

Paraphernalia: Outer box (glue has come off on one of the flaps), leather inner case, Chronometer booklets, Chronometer certificate/warranty card dated 2018 (expired), luggage tag and Watch Vault cleaning cloth

TZ Grading: Good


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