#Watches Accessories

Watches

Japan Genuine NH38A Movement Buyer's Reference: 24-Jewel Automatic Watch Mechanism for Repairs and Mods — Compatibility Checks First

The NH38A is a genuine Japanese automatic movement — 24 jewels, date display, three hands — and it is one of the standard donor mechanisms for watch repairs and custom builds. For buyers whose watch stopped and who cannot identify the replacement, the logic of this part category is: confirm the movement caliber engraved or documented for your watch case (NH38 family in this instance), match the hand sizes and dial date window position, then order. The 24-jewel automatic design runs on wrist motion with hand-winding support per the Seiko-derived family conventions. At around $114.75 (52% off), with 851 recent sales and a 98% positive rating, it is a credible part-source option — but note that swapping a movement requires proper tools and skill, or a watchmaker's bench.

Watches

Japan NH35 Automatic Movement Buying Guide: 24-Jewel NH35A Replacement, Date at 3

If you are repairing or building a watch and the movement has given up, the NH35 is one of the most practical replacements to keep on the bench. This is a Japan-made 24-jewel automatic movement with a date window at 3 o'clock, known in the modding world as the NH35A family - the same platform used by countless microbrand and custom builds, which is why parts, hands and stems are easy to source. The key to choosing correctly is the date position: a movement with the date at 3 lines up with dials cut for 3 o'clock, so check your dial and hands before ordering. It is a self-winding design that also hand-winds and hacks (the seconds stop when you set the time), which makes setting quick and precise. Fitting one is not a beginner job: you need the right case, dial feet, hands and stem, plus basic watchmaking tools and a dust-free space. If in doubt, note your case's movement number and match it exactly.