Rolex [Caliber 1401] - Regulated Balance with Flat Hairspring - 2938

The base product Rolex [Caliber 1401] – Regulated Balance with Flat Hairspring – 2938 carries the part list number 2938 specifically for spare parts searches for Caliber 1401.

In the Rolex documentation, 1401 is designated as Base Calibre 1400. Therefore, the regulated balance with flat hairspring is classified as a common component of calibers 1400 and 1401, but here it receives its own 1401 product with a dedicated search, title, and SEO context.

For precise assignment, the caliber designation, part number 2938, and the name regulated balance with flat hairspring are checked together. The technical reference image supports this verification during servicing, repair, and spare parts search.

Later variants document the available original part, its condition, and the actual delivery scope.