Seiko Prospex SPB143vsTissot Seastar 1000

Both are excellent watches with different strengths. The Seiko Prospex SPB143 offers a more compact size and costs more new. The Tissot Seastar 1000 excels in water resistance. The best choice depends on your wrist size, budget, and preferred aesthetic.

The Seiko Prospex SPB143 retails for $700–$900, while the Tissot Seastar 1000 is priced at $650–$800. Pre-owned, expect $550–$750 and $450–$650 respectively. Actual secondary market prices vary based on condition and demand.

The Seiko Prospex SPB143 has a 40.5mm case diameter with 13.2mm thickness, while the Tissot Seastar 1000 measures 45.5mm × 13.7mm. Both have lug-to-lug measurements of 48mm and 52mm respectively. Consider your wrist size and wear style when deciding.

The Seiko Prospex SPB143 is water-resistant to 200m, while the Tissot Seastar 1000 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 SPB143 uses a automatic 6R35 with 70 hours power reserve. The Tissot Seastar 1000 features a automatic Powermatic 80 with 80 hours power reserve. Both offer traditional mechanical craftsmanship.

Seiko and Tissot both command strong secondary markets. Pre-owned pricing shows an estimated resale value of $550–$750 for the Prospex SPB143 and $450–$650 for the Seastar 1000. Condition, service history, and box/papers significantly impact resale value for both models.