GrailAtlasAn independent mechanical watch reference
English
Grand Seiko Tentagraph (GPHG 2023)

Grand Seiko Tentagraph

Language:

~$17,646 · 1 CHF = 1.234 USD (2026-07-22)

Year
2023
Category
Chronographe
Reference
SLGC001
Case
ø 43.2 mm · Céramique, Titane haute intensité
Material
Ceramic
Dial
Blue
Movement
Mécanique à remontage automatique Réserve de marche: 72 h, 36000 alt/h Mouvement squelette
Water resistance
100 m
Price tier
$10K–$20K

The Tentagraph is the first mechanical chronograph signed Grand Seiko. The watch features the 9SC5 caliber, which is based on the revolutionary 9SA5 caliber.

View on GPHG ↗

More photos and full details on the official GPHG page.

Similar watches in the GPHG field

Catalog alternatives from the GPHG field, not the wider market yet.

Live on eBay

Checking live listings…

Grand Seiko Tentagraph (GPHG 2023) — Grail Atlas