Movement: Seiko VK63 mecha-quartz. This movement provides the accuracy and reliability of a quartz watch while giving the chronograph a mechanical "snap-back" feel when reset. Case: The case is made from 316L stainless steel, typically measuring 40mm in diameter, with a thickness of around 13mm to 14mm. It often features a screw-down crown and a screw-down caseback with a space-themed etching. Crystal: It is equipped with a scratch-resistant sapphire crystal, which may have an anti-reflective coating. Water Resistance: The watch is water-resistant to 100 meters (10 ATM), making it suitable for activities like swimming but not for hot showers or scuba diving. Bezel: The watch has a fixed bezel with a tachymeter scale. The bezel material is typically ceramic. Bracelet: The stainless steel bracelet has a mix of brushed and polished finishes and uses a milled clasp with micro-adjustments. The quality of the bracelet finishing may vary between versions.