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Seiko SSB455
Seiko · Chronograph. Sold new
Video reviews
Jeweler van Dam · YouTube
2stime · YouTube
Videos are made by independent reviewers and play from YouTube; they’re not ours. We picked ones that name this reference. Own one? Share your photos.
Where to buy
New · grey market (unauthorized)
Often cheaper. Covered by the store’s own warranty, not Seiko’s.
Pre-owned
Check condition, box and papers. Usually no warranty.
Search links show live listings, so check the exact reference before you buy. Prices change; each one shows when we checked it. We may earn a commission from some links. It doesn’t change your price or which stores we list. Authorized vs grey market vs pre-owned.
The basics
Price
$415
Seiko US list, 2026-10-23
Size
40 mm × 11.5 mm
45.8 mm lug to lug
Strap width
20 mm
Any 20 mm strap fits
Water resistance
100 m
Sapphire crystal
Yes
Screw-down crown
Not listed by Seiko
Will it fit my wrist?
Rough rule of thumb from lug-to-lug length (45.8 mm), not a promise. Wrist shape matters; try one on if you can.
How it works day to day
Movement
Quartz
Caliber 8T63, rated ±15 seconds per month
Bezel
No rotating bezel listed
Hacking seconds
Not needed (quartz)
Hand-winding
Not needed (quartz)