STRAUM-01, 41 mm diameter. Damascus Steel. 22 mm lug width. Two pairs of spring bar holes; one pair for regular leather straps and one pair for NATO fat spring bars.
Unibody middle case, press-fit case back with alignment, and push/pull winding crown.
Damascus Steel (316L and 306L Stainless Steel alloys).
Chamfered sunburst bezel, 316L Stainless Steel.
Push/pull winding crown, 316L Stainless Steel.
3,300-year-old wood, resin-infused under vacuum and heat baked. UV-resistant finish coating, applied indexes with Superluminova BGW9. Date window.
Diamond cut hands with Superluminova BGW9.
Double domed scratch-resistant Sapphire crystal with 5 layers of internal anti-reflective coating. Press-fit mounted.
Stamped and surface-treated 3D motif, with two sapphire crystals windows. Press-fit mounted. 316L Stainless Steel.
Waterproof to 10ATM.
MANUFACTURER: Sellita SW-200A.
FREQUENCY: 28’800 A/h (4 Hz)
POWER RESERVE: 38 hours
PRECISION: -20/+20 sec/day, after casing
JEWELS: 28 pcs
OSCILLATING WEIGHT: Oscillating weight with segment of heavy metal and ball bearing
BARREL SPRING: Nivaflex
SHOCK ABSORBERS: High-performance Novodiac
Center hour, minute and seconds hands. Instantaneous date with rapid setting. Stop-seconds for precise time setting.
Bi-directional self-winding via perpetual rotor.
Approximately 38 hours.
Custom buckle, 316L Stainless Steel with STRAUM logo engraving.
Full grain vegetable-tanned leather with matching liner also of vegetable=tanned leather. Medium-weight stitching around the edge completes the look.
The strap is designed to perfectly fit Straum watch cases, with inset lug cuts and a slight padded profile on the top half of the strap.
Custom Straum buckle included. All versions feature quick-release spring bars for easy fitting.
The lug-to-lug width is 22mm; full strap width is 25mm at the lugs, tapering to 20mm at the buckle. The thickness is 5mm at the lugs and tapers to 2.7mm at the buckle. Buckle strap length is 75mm long; holed strap length is 115mm.