1 in stock

Wittnauer Pert-O-Graph Ref. 7005 Rare Pert-O-Graph Scale Bezel

This vintage Wittnauer Pert-O-Graph, reference 7005, is a rare tool watch equipped with an automatic movement and a date function. The stainless steel case surrounds a unique cream-colored dial featuring a distinct grid pattern, applied square hour markers, and a date window at the 3 o’clock position. Its defining characteristic is the bidirectional rotating bezel, which contains a “Pert-O-Graph” slide rule scale specifically designed for project management calculations. This example shows notable wear and fading on the bezel and patina on the dial, consistent with its age.

1 in stock

1 in stock

General

Brand

Model Line

PERT-O-GRAPH

reference

7005

Manufactured

Switzerland

Department

Men

Dial Color

Black

,

White

Case

Case Shape

Round

Bezel

Bi-Directional Rotating

,

Pert-O-Graph Scale

Case Material

Stainless Steel

Case Width

40mm

Case Height

46.6mm

Strap / Bracelet

Lug Width

20mm

Strap Material

Leather

Strap Color

Green

Clasp

Buckle

Max Wrist Size

8.5"

Movement

Movement

Automatic

Caliber

Longines-Wittnauer C11KAS/1

Accuracy

>10 seconds

The movement showed a daily accuracy deviation ranging from 0 to 10 seconds across six positions.

Extras

Warranty Every watch sold by Ottuhr comes with a 1-year mechanical warranty. Select pieces may also include additional guarantees or extended coverage.

1-Year Ottuhr Warranty

Original Box

No

Original Papers

No

Technical Condition

Timing: The watch has been measured with a timegrapher at six different positions. The rate, amplitude, and beat error are within acceptable ranges.

Functions: All functions including the crown winding, time setting, etc are working as expected.

Integrity: The movement shows no signs of damage, rust, or corrosion, with all components appearing clean and well-maintained.

Authenticity / Warranty

Authenticity: Each timepiece is evaluated and authenticated in-house. This watch is guaranteed to be correct to its manufacturer and time period.

Warranty: This timepiece includes a 1-year mechanical warranty, activated upon the date of purchase. 

Shipping & Returns

Shipping: This timepeice includes complimentary insured shipping within all 50 states. 

Returns: If, for any reason, you are not entirely satisfied with your purchase, you may return the product for a full refund within 30 days from the date you received or signed for the item.

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