Seiko Prospex SBDC101vsOmega Seamaster 300m

Both are excellent watches with different strengths. The Seiko Prospex SBDC101 offers a more compact size and costs less new. The Omega Seamaster 300m excels in water resistance. The best choice depends on your wrist size, budget, and preferred aesthetic.

The Seiko Prospex SBDC101 retails for $650–$800, while the Omega Seamaster 300m is priced at $6k–$6k. Pre-owned, expect $500–$700 and $5k–$6k respectively. Actual secondary market prices vary based on condition and demand.

The Seiko Prospex SBDC101 has a 40.5mm case diameter with 13.2mm thickness, while the Omega Seamaster 300m measures 42mm × 13.6mm. Both have lug-to-lug measurements of 48mm and 51mm respectively. Consider your wrist size and wear style when deciding.

The Seiko Prospex SBDC101 is water-resistant to 200m, while the Omega Seamaster 300m offers 300m. Both are suitable for swimming and snorkeling at their respective depths. For professional diving, verify the rating exceeds 300m and includes a screw-down crown.

The Seiko Prospex SBDC101 uses a automatic 6R35 with 70 hours power reserve. The Omega Seamaster 300m features a automatic Cal. 8800 with 55 hours power reserve. Both offer traditional mechanical craftsmanship.

Seiko and Omega both command strong secondary markets. Pre-owned pricing shows an estimated resale value of $500–$700 for the Prospex SBDC101 and $5k–$6k for the Seamaster 300m. Condition, service history, and box/papers significantly impact resale value for both models.