Mark Johnson

Active 12m ago

Bio: TWBC Certified watch builder. Owner at https://horologyhub.com and custom watches at https://jadeion.com https://www.instagram.com/jadeionwatches

Mark Johnson

@mark-johnson-4530

UK - Black Country watch collector — fully down the rabbit hole and getting stuck into self-builds and custom pieces.

Active 18h ago

Joined May 9, 2026

Worcestershire

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