Is the Seiko Prospex SPB453 the Upgraded SPB143 that you want? Full Review

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Time Stamps:
0:00 Intro
2:25 features
4:58 Opinion

Watch Info:

The Seiko SPB453 Prospex diver's watch showcases over 50 years of dive watch innovation in a compact, stylish package. Its Caliber 6R55 automatic movement boasts a 72-hour power reserve, ensuring reliable performance for extended periods. With a stainless steel case measuring 40.0mm in diameter, 13.0mm in thickness, and 46.4mm lug-to-lug, it offers improved wearability and comfort for everyday use.

Enhancements include a water resistance of 300 meters, a first for Prospex non-saturation diver’s watches. The curved sapphire crystal with anti-reflective coating enhances visibility, while Lumibrite on the hands, indices, and bezel ensures legibility even in low-light conditions.

Design improvements focus on symmetry and comfort, with the date window positioned between four and five o'clock for balance and filled with Lumibrite for enhanced visibility. The bracelet features shorter links and a smaller clasp, conforming to the wearer's wrist for added comfort.

Key features such as the unidirectional rotating bezel, screw-down crown, and screw case back ensure reliability and ease of use in demanding conditions. The three-fold clasp with a secure lock and extender provides a secure fit during active pursuits.

The SPB453 combines Seiko's legacy of dive watch craftsmanship with modern advancements, making it a versatile timepiece suitable for both professional diving and everyday wear.

Band Bracelet
Band Material Stainless Steel
Caliber 6R55
Case Material Stainless Steel
Case Size 40mm
Case Thickness 13.0mm
Caseback Closed
Clasp Three-fold
Collection Prospex
Crystal Sapphire Crystal
Dial Black
Function Date
Gender Men's
Lug Width 20mm
Lug-to-Lug 46.4mm
Movement Automatic
Power Reserve 72 Hours
Water Resistance 300m
SKU # SEI-SPB453