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Seiko Prospex

Seiko Prospex

SolarSteel

Ref. SBPK003

Collection: ProspexCase size: 45mmMovement: 5K65

The Seiko Prospex, reference SBPK003, is a GMT watch with a 45 mm steel case. The case is 13.2 mm thick, with a lug-to-lug measurement of 51.8 mm. Solar-powered calibre 5K65 contains 3 jewels and operates for approximately 9 months when fully charged. The watch has a sapphire crystal with an anti-reflective coating on the inner surface. The dial has a date display; the clasp has a folding construction with push-button release and an extender. Movement accuracy is plus or minus 15 seconds per month. The case has a screw-down crown; the watch has magnetic resistance. The hands and indices carry LumiBrite.

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Last updated 9 Oct 2026Suggest a correction

TECHNICAL SPECIFICATIONS

CASE

Diameter

45mm

Thickness

13.2mm

Lug to Lug

51.8mm

Case Material

Steel

Crystal

Sapphire Crystal

MOVEMENT

Movement Type

Solar

Caliber

5K65

Jewels

3 jewels

BRACELET/STRAP

Clasp Type

Fold Clasp

FEATURES & COMPLICATIONS

DateGMTLuminous handsLuminous indicesRotating BezelScrew-Down CrownSolar watch

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