SYSTEM-21 — SUBLOK Strap
Dual-pass architecture. Compression control. Engineered elastic.
The SUBLOK is a dual-pass strap built on the SYSTEM-21 elastic chassis — a modular platform derived from military equipment standards and re-spec’d for modern tool watches. The strap’s engineered elastic balances compression, stretch and stability to maintain watch position under movement and during variable wrist conditions.
Designed for technical wear, SUBLOK offers an expanded adjustment window for bare wrist or over light garments, while maintaining low profile signature and minimal bulk. Precision hardware delivers secure clamping tension without compromising mobility.
Compatible with both spring bars and fixed bars, the SYSTEM-21 chassis accommodates 20–22 mm lugs, enabling cross-platform use across contemporary divers, heritage references and field watches.
Hand-assembled in Australia.
⸻
Materials & Construction
• Engineered elastic — mil-derived compression profile
• Dual-pass chassis — stability under movement
• Low bulk hardware — blackout, matte or polished steel.
• Abrasion resistant and saltwater tolerant
⸻
Performance & Use Case
• Maintains watch stability under load and motion
• Compression-based fit modulation
• Over-garment compatibility (light layers/gloves)
• Concealable, no-glare profile
• Field-validated for daily and technical wear
⸻
Fit & Compatibility
• Lug width: 20–22 mm
• Bar compatibility: Spring bars + fixed bars
• Platform: Tool, dive, field, heritage military
SYSTEM-21 — SUBLOK Strap
Dual-pass architecture. Compression control. Engineered elastic.
The SUBLOK is a dual-pass strap built on the SYSTEM-21 elastic chassis — a modular platform derived from military equipment standards and re-spec’d for modern tool watches. The strap’s engineered elastic balances compression, stretch and stability to maintain watch position under movement and during variable wrist conditions.
Designed for technical wear, SUBLOK offers an expanded adjustment window for bare wrist or over light garments, while maintaining low profile signature and minimal bulk. Precision hardware delivers secure clamping tension without compromising mobility.
Compatible with both spring bars and fixed bars, the SYSTEM-21 chassis accommodates 20–22 mm lugs, enabling cross-platform use across contemporary divers, heritage references and field watches.
Hand-assembled in Australia.
⸻
Materials & Construction
• Engineered elastic — mil-derived compression profile
• Dual-pass chassis — stability under movement
• Low bulk hardware — blackout, matte or polished steel.
• Abrasion resistant and saltwater tolerant
⸻
Performance & Use Case
• Maintains watch stability under load and motion
• Compression-based fit modulation
• Over-garment compatibility (light layers/gloves)
• Concealable, no-glare profile
• Field-validated for daily and technical wear
⸻
Fit & Compatibility
• Lug width: 20–22 mm
• Bar compatibility: Spring bars + fixed bars
• Platform: Tool, dive, field, heritage military
