ROLEX OYSTER BUBBLEBACK 14K ROSE GOLD Ref.3131 Cal.620NA Circa 1946

Name: ROLEX OYSTER BUBBLEBACK 14K ROSE GOLD Ref.3131 Cal.620NA Circa 1946
Brand: ROLEX
Price: 1150000 JPY
Availability: InStock
Rating: 5 (1 reviews)

Japan

￥1,150,000

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Basic Information

Brand

ROLEX

Model

VINTAGE MODEL

Reference Number

3131

Case Material

14K SOLID GOLD

Year Of Manufacture

1946

Dial Condition

Aged Patina Due to Vintage Condition

Case Condition (Including Case Back)

Pre-owned (Some minor scratches on case)

Accuracy

Mechanical (±30 seconds/day)

Gender

Male

Location

Japan

Movement

Winding Up

Automatic

Caliber

620NA

Power reserve

Number of jewel bearings

Case

Case Material

14K SOLID GOLD

Glass

plastic

Size (excluding crown)

Dial

rose gold hour makers & Rose gold hands

Numbers on the dial

Alabic Number

Belt

Belt Material

カーフ

Explanation

See translation

★★★ ROLEX ★★★

14K Solid Gold “Bubbleback”
Original Rose Gold Hour Markers & 14K Solid Gold Hands

Ref. 3131

☆☆☆ Vintage – Produced in 1945 ☆☆☆

(Timegrapher results: +15 sec/day, amplitude 265°, beat error 0.2 ms, lift angle 52°)
Values are from actual measurement and may vary according to environment.
Aside from the band and buckle, all components are completely original.
Dial is in original condition from 1945.

★ Original 14K Solid Rose-Gold Plain Bezel (c. 1946) ★

Condition: No case wear, no dents, no noticeable scratches—excellent overall condition.

★ Original Rose-Gold Arabic Numeral Hour Markers & 14K Hands (c. 1946) ★

Specs: Central hours, minutes, and subsidiary seconds
Markings: “ROLEX OYSTER PERPETUAL CHRONOMETER SWISS MADE”
Condition: Uniform aging and numerous spotting marks.

★ Original 14K Solid Rose-Gold Leaf Hands (c. 1946) ★

Condition: Color aging present, but clearly identifiable as rose gold.

★ Original 14K Solid Rose-Gold Middle Case (c. 1946) ★

Condition: Not polished by us; has scratches but shows virtually no case thinning.
Size: 32 mm (35 mm including crown) × 39 mm (lug-to-lug)

★ Original 14K Solid Rose-Gold “OYSTER PATENT” Crown (c. 1946) ★

Condition: No plating loss or degradation of any kind.

★ Original 14K Solid Rose-Gold Screw-Back Case (c. 1945) ★

Engraving: ROLEX GENEVA SWISS 14K 0.580 3131
Condition: Unpolished with some scratches, minimal aging, and only fine edge marks—excellent overall.

★ Aftermarket Brown Calf Strap & Aftermarket Buckle ★

Size: Lug width 17 mm / Buckle width 14 mm
Condition: Strap – new / Buckle – new

★ Cal. 620NA ★

6 Positions Adjustment

Chronometer-certified movement

Vibrations: 18,000 vph

Jewels: 17

Power reserve: max. 48 hours

Super Balance
Markings: “ROLEX AUTO ROTER CHRONOMETER SWISS MADE PATENTED”