Timefactors · Microbrand · United Kingdom

Timefactors Sewills Ferreira PRS-39

Ref. PRS-39 · Limited · limited to 100 · Dress

Timefactors Sewills Ferreira PRS-39, white dial with blue Roman numerals, blued hands and small seconds at 6, on brown leather strap
Photo: Timefactors
  • Timefactors Sewills Ferreira PRS-39
  • Timefactors Sewills Ferreira PRS-39
From $1,306
  • ETA 6498-1
  • 42 mm × 10.75 mm
  • Sapphire crystal
  • 100 m water resistance

Movement

Caliber
ETA 6498-1
Type
Hand-wound
Tier
Upper
Complications
Small seconds
Frequency
18,000 bph
Power reserve
46 h
Hacking
No
Accuracy (factory)
—
Modifications
Unitas 6498 "extensively modified": screwed Glucydur balance with Nivarox hairspring, swan-neck regulator, 3/4 top plate with Geneva stripes, anglage, blued screws

Case

Diameter
42 mm
Lug to lug
52 mm
Thickness
10.75 mm
Lug width
22 mm
Material
Steel (316L)
Hardening
—
Water resistance
100 m
Crown
—
Case back
Display
Bezel
—
Finishing
Polished

Crystal & dial

Crystal
Sapphire
Shape
Flat
Anti-reflective
—
Lume
None

Bracelet

Bracelet
Not offered

Straps

Strap 1
Leather, Alligator-grain calf leather with signed deployant clasp

Weight

Head only
—
On bracelet
—
On strap
95 g

Prices

VariantConfigurationTypePriceUSDAs ofSource
All—Msrp980 GBPincl. VAT$1,3062026-10-24link

About this entry

80% of key specs known. Missing: hardening, AR coating, crown.

Named after the clipper Cutty Sark's Portuguese-era name; a limited edition of 100 pieces, marked "Final production run". Product page: 316L polished steel, 42mm (46mm with crown), 52mm lug-to-lug, 10.75mm to the top of the flat crystal, 22mm lugs, anti-magnetic to 4,800 A/m, 100m, 95g with strap and clasp; flat sapphire front and back (display back); white dial, custom blued hands, no lume. The store's product type says "automatic winding", but the specification and tags say hand-winding: the movement is a "Unitas 6498 hand-winding movement" (Swiss Made, no suffix given), linked to the ETA 6498-1 file. Case made in Germany. Supplied in a gloss-lacquered wooden box with a two-year guarantee. Available on 2026-10-25.

Last verified: 2026-10-25. Edit or correct this entry.

Sources