Erwin Sattler Regulateur Classica Secunda Wristwatch

The Regulateur Classica Secunda Wristwatch by German clock manufacturer Erwin Sattler was created in cooperation with Habring Uhrentechnik OG.

This automatic wristwatch features an engraved gold rotor, a regulator display, and a jumping second hand that springs forward with the tact of the second itself. This Sattler wristwatch was created on the occasion of the fiftieth anniversary of the company’s founding and has since become a popular and successful model.

The Regulateur Classica Secunda features an exact miniature version of the very successful wall clock Classica Secunda 1985’s regulator dial, but with all the characteristics of a fine mechanical wristwatch: As on the original, this wristwatch’s dial is made of solid sterling silver (925/000) and sports four screws.

The wristwatch Regulateur Classica Secunda exact miniature versions of the very successful wall clock Classica Secunda 1985. Its regulator dial aside, it contains all the characteristics of a fine mechanical wristwatch: Like the original, this wristwatch’s dial is made of solid sterling silver (925/000) and sports four screws.

The regulator dial with its subsidiary seconds at 12 o’clock, hours at 6 o’clock, and large central minute hand is just as naturally a part of the Erwin Sattler collection as are the invar compensation pendulum and gold-plated gears of a precision pendulum clock. This exceptional hand placement is modeled after the especially precise pendulum clocks found at observatories.

When making time comparisons, it was found that the very wide hour hands on the observatory’s clocks hid the second hand, the vital link in precision regulation work. Taking this into consideration, clock designers therefore created regulator dials with one main dial for the minute hand, kept very slender, and two subsidiary dials for hours and seconds — all of which were completely legible at all times.

Erwin Sattler’s clock specialists give not only the dial special attention, but also the domed steel hands of this wristwatch Regulateur. The hands are first hardened and polished. Finally, they are slowly heated to 295° C, at which point the hardened steel achieves its coveted deep blue hue. The hour and minute hands have steel hand sockets with polished grooves — just as the clocks do.

The Regulateur Classica Secunda was created in cooperation with the company Habring Watch Technology. Only the wheels, escapement parts, and some plates from the seasoned ETA Valjoux 7750 chronograph caliber are in use here.

All other parts needed for the movement, including the jumping seconds subgroup, are completely new designs. The oscillating pinion, an arbor with two differently toothed gears whose purpose is actually to ensure the energy flow between movement and chronograph, was cleverly employed to power an additional mechanism. This mechanism utilizes several wheels and pinions and a stop spring, causing the second hand to jump.

The automatic movement was then modified, assembled it and housed it in a stainless steel case consisting of both polished and matte components. Sturdy strap lugs with screw-in bars lend an aura of solidity and robustness that is underscored by the large crown. The meticulously finished automatic rotor, hand-skeletonized and engraved with the company initials by master engraver Jochen Benzinger, makes each watch unique.

Technical details

Stainless steel case
Ø 44 mm, height: 15 mm
Domed anti-reflective sapphire crystal, sapphire crystal in case back
Water-resistance tested up to 5 bar
Crown in the shape of a precision clock movement holder nut, decorated with milled Sattler logo
Bezel shape corresponding to the Sattler precision clock bezel

Hours, minutes, subsidiary jump seconds

Sattler-calibre ES 01, Self-winding, based on ETA 7750
28 jewels
Power reserve: 42 hours
Oscillator engraved by hand and skeletonized decorated with guilloche work,
Option: customized oscillating weight with own initials

Solid silver dial, numbered consecutively, regulator display, “small second” at “12”

Hand-sewn remborded leather strap
Double folding clasp with push-button release, stainless steel with Sattler emblem

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