Seiko HAC001: caliber 7B72, 39.6 mm case, 100 m water resistance.
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Specifications
Specifications from Seiko, last seen 2026-09-21.
Movement
- Caliber
- 7B72 All 7B72 watches →
- Movement
- Solar
- Jewels
- 6
Case & crystal
- Case material
- Pure titanium
- Case diameter
- 39.6mm
- Case thickness
- 9.5mm
- Lug to lug
- 45.4mm
- Crystal
- Sapphire crystal
Resistance
- Water resistance
- 100 m
- Magnetic resistance
- Antimagnetic
Catalogue
- Family
- HAC
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Variants Same watch, different market or bracelet
| Reference | Edition | Region | Band | Clasp | Weight |
|---|---|---|---|---|---|
| HAC001J | J | Japan | — | Three-fold clasp with push button release and micro-adjuster | 90g |
