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Seiko Prospex

Seiko Prospex

SolarSteel

Ref. SFK003J1

Collection: ProspexCase size: 45mmMovement: 5K65

The Seiko Prospex, reference SFK003J1, is a GMT watch with a 45 mm steel case. This is a special edition. The case is 13.2 mm thick, with a lug-to-lug measurement of 51.8 mm and a water-resistance rating of 200 metres. The movement is solar-powered calibre 5K65, which operates for approximately 9 months when fully charged. The dial is covered by a sapphire crystal with an anti-reflective coating. The movement has an accuracy of minus 15 to plus 15 seconds per month. A steel bracelet closes with a three-fold clasp with push-button release.

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Last updated 9 Oct 2026Suggest a correction

TECHNICAL SPECIFICATIONS

GENERAL

Gender

Men

CASE

Diameter

45mm

Thickness

13.2mm

Lug to Lug

51.8mm

Case Material

Steel

Water Resistance

200m

Crystal

Sapphire Crystal

MOVEMENT

Movement Type

Solar

Caliber

5K65

Jewels

3 jewels

BRACELET/STRAP

Bracelet/Strap

Steel

Clasp Type

Fold Clasp

FEATURES & COMPLICATIONS

GMTRotating BezelSolar watchSpecial Edition

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FOR WATCH DEALERS

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