Bauhaus 33mm — Ultra Thin Watch Case

9.93mm with the solid caseback, measured on a vernier caliper — under 10mm. A standard NH movement is 7.59mm tall on its own, so the crystal, caseback floor, walls and hand clearance share just over 2mm between them. It's the thinnest case in our Ultra Thin line.

No. The Bauhaus 33 ships with the 6mm coin-edge screw-down crown, the caseback (Solid or Sapphire, per your selection), and a pre-installed flat sapphire crystal. To finish the watch you only need a dial, hands, chapter ring and movement.

By design. The visible bezel is only 1.4mm — the Bauhaus is built to get out of the way so the dial carries the whole look. If you want the case to frame the dial, this isn't the one; if you want the dial to be the watch, it's exactly the one.

Type M and Type L are Seiko's two factory hand-fitting versions of the NH series. Type L sits higher than Type M — about 0.4mm taller from base to second-hand pinion. Because of the tight clearance between hands and sapphire in Ultra Thin Edition cases, only Type M will fit. Confirm your movement type before ordering.

No — and that's the whole point of us pre-installing the sapphire for you. The chapter ring sits on top of the dial inside the case, not under the crystal, so the crystal stays where it is throughout the build. (If you ever do need to remove the sapphire — for example, to replace it — that's a workshop job we handle for you, not an at-home step.)

The choice depends on your dial, not the case — both sizes fit every Ultra Thin Edition case. If your dial has applied (raised) indices, the ultra thin chapter ring is the better choice because its slimmer profile gives the indices clearance instead of resting on top of them. If your dial is flat-printed (no applied markers), either size works. When in doubt, the ultra thin chapter ring is the safer default because it works with both dial types.

A specific size and spec used by Seiko in the SKX013 (discontinued 2019). The LA smaller-case lineup all uses this same spec, which means dozens of chapter ring designs work across every smaller case in the catalogue.

Any 28.5mm dial will fit. Stock SKX007 dials may seat differently because the original SKX007 has a 4 o'clock crown position with offset dial feet, while Ultra Thin Edition cases are designed for 3 o'clock dial feet.

Yes — every Ultra Thin Edition case requires an SKX013-spec chapter ring, sold separately. The chapter ring seats the dial at the correct height; without it, the dial drops and the hands will not clear properly.

They are rounded off — but they are still crisp, and we would rather say that than have you open the box expecting something softer. "Sharp" is genuinely subjective: a Rolex is sharp too, and where one person reads that as crisp and well-defined, another finds it catches. The bracelet clasp is the sharpest part of the whole package — that is the part to know about before you commit.

If a previous mod was painful to wear, it is worth working out what actually caused it: a poorly finished lug edge digging in is a different problem from a clasp catching on the back of your wrist. Email hello@luciusatelier.com and say which it was, and you will get an honest answer on whether ours will be better or much the same.

Cases ship exactly as listed — no custom machining, no changes to size, lug width or lug shape, no alternative finishes of an existing case, and no engraving (a local engraver or jeweller can engrave a finished part after purchase). What you can customize is the build: choose the case, dial, hands, chapter ring, bezel insert, crystal and bracelet you want and LA will assemble the finished watch for you. Bespoke design work — one-off dials, mockups or renders, designing a build to a brief — is not offered. For fully custom work, see the list of watch modification specialists.

UTE is shorthand for the Ultra Thin Edition — the Lucius Atelier case line engineered to stay near or under 10mm while remaining NH-compatible, where most Seiko mod cases on the market run 13–14mm. It includes the Bauhaus 33mm at 9.93mm with a solid caseback (the thinnest NH-compatible mod case on the market), the Explorer 36mm at 9.96mm, the Seikonaut 38mm at 10.0mm, the NH34 GMT-ready 1908 36mm at 10.75mm, the SKX013 Diver 38 at 10.86mm and the Pilot 34mm at 10.96mm. Ultra Thin cases take the standard 0.4mm dial spec, and both chapter ring sizes fit them.