New Arrival
Nivada Grenchen

Antarctic Erotic Tuxedo 38mm, Mens Watch

320696M20 38mm
View Specs
Regular price $1,769

Sign up to be notified if this product becomes available.

Have more questions? Chat Live with an Expert

Authorized Luxury Retailer
Rolex green flag outside the Watches of Switzerland store with cream columns and large windows.

Renowned for expertise in luxury watch retail, Watches of Switzerland embodies the highest standards of craftsmanship and service. With a history dating back to the 1700s, the company offers a curated selection of premier timepieces and commits to excellence in customer experience grounded in a legacy of trust and industry proficiency.

Authorized Luxury Retailer

Authorized Luxury Retailer

We are an authorized retailer for over 80 luxury watch brands.
Free Expedited Delivery
Cartier watch box close up

Free Expedited Delivery on Orders $300 and Up (Estimated 1-3 Days)

Our secure shipping service operates Monday through Saturday, from 8:00 a.m. to 6:00 p.m. For security reasons, an adult signature is required for for orders over $300 USD. Watches of Switzerland does not deliver to P.O. boxes or third-party forwarding services. For more information about delivery, click here. Tracking information will be made available upon shipping.

*Additional shipping fees may apply to domestic orders shipped outside the continental United States.

$15 Flat Fee on Orders Under $300 (Estimated 1 - 2 weeks)

Monday through Friday, from 8:00 a.m. to 6:00 p.m. For more information about delivery, click here. Tracking information will be made available upon shipping.

If you have any questions or concerns regarding your order, please contact the Watches of Switzerland Client Services

Free Expedited Delivery

Free Expedited Delivery

We offer free, expedited delivery on all orders over $300.
Easy Returns
customer service woman helping customer

Our commitment to you does not end at delivery. We offer the following return services to make your experience as pleasant as possible.

10-Day Returns For Timepieces:

Timepieces purchased online can be returned or exchanged within 10 days from when they are shipped or collected.

30-Day Returns For All Other Purchases:

All other online purchases can be returned or exchanged within 30 days from when they are shipped or collected.

On presentation of the original receipt, your purchases may be returned or exchanged at any of our store locations. Alternatively, you may elect shipping to our facility with all the original paperwork. All refunds must be credited to the same tender used for the original purchase. To return the online purchases through secure shipping service, please contact our client service team who will provide you the shipping label, free of cost*.

All returns or exchanges must be in new, unworn condition, with no scratches or markings, not sized or adjusted and in their original packaging and with warranty cards / certificated and instruction booklets.

*For order under $300 and all international returns:

Return Shipping: Clients are responsible for shipping items back to our U.S. facility, including all associated costs such as duties, taxes, and carrier fees.

Refunds/exchanges only in the country of purchase.

Please refer to our Return Policy for details on eligible items, return timeframes, and conditions.

Easy Returns

Easy Returns

Purchase with confidence with our simple return policy.

Nivada Grenchen Antarctic Erotic Tuxedo - (Ref. 320696M20) Product Details

Built on the iconic Antarctic platform introduced in the 1950s, the Antarctic Erotic reinterprets one of Nivada Grenchen’s most emblematic designs through a bold yet subtle evolution.

At its core, it remains a true daily watch: a perfectly balanced 38mm stainless steel alternating polished and brushed finish, paired with timeless dial executions inspired by vintage Antarctic models. But beyond the dial lies its secret. Flip the watch and interact with it the animated caseback comes to life through the winding motion. A miniature mechanical automaton, engineered as an extension of the movement itself, transforms a simple gesture into a private, playful experience.

This hidden animation remains invisible to the outside world, reserved only for the wearer. This concept follows a long-standing watchmaking tradition of discreet complications from automata to hidden scenes designed not to be shown, but discovered. Inside, a modified hand-wound Soprod P054 movement powers both timekeeping and the animation.

The mechanism has been re-engineered so the winding action drives a cam system, translating motion into a vertical animation on the caseback, without compromising reliability or wearability. Beyond its mechanical ingenuity, the Antarctic Erotic carries meaning. Rooted in the Antarctic legacy, first tested during U.S. Navy Operation Deep Freeze (1955–1956) the penguin became a historic symbol of the collection. This watch reinterprets that emblem with a modern twist, while contributing to real-world impact.

General

Condition

New

Brand

Nivada Grenchen

Reference

320696M20

Family

Antarctic Erotic

Product Code

18730067

Power Reserve

42h

Watch Display

Analog

Water Resistance

100m

Features

Date display
Deployment clasp
Manual winding
Waterproof

Case

Case Size

38mm

Case Depth

12.45 mm

Case Shape

Round

Case Material

316L Stainless Steel

Bezel Type

Fixed

Bezel Material

Stainless Steel

Bezel Color

Silver

Case Finish

Polished & Brushed

Lug to Lug

45 mm

Lug Width

20 mm

Crystal

Sapphire

Dial

Dial Color

Black

Dial Texture

Texture

Dial Markers

["Applied Markers"]

Stone Set

false

Movement

Type

Manual Winding – Soprod P054 (modified; animated caseback cam)

Movement Origin

Swiss

Caliber

Soprod P054 (modified; animated caseback cam)

Bracelet

Type

Bracelet

Stone Set

No

Buckle/Clasp

Deployment