Glashutte Bison, Cal. GUB 75, Men’s Automatic Vintage Watch

Glashutte Bison 1972 — bold Spezimatic geometry on the wrist

The 35 mm case and 42 mm lug-to-lug measurement give this Bison compact vintage dimensions, yet the broad square body creates noticeably more visual presence than a conventional round watch of similar diameter. Straight projecting lugs and a circular dial opening establish the angular architecture associated with the model. The warm gold-plated exterior contrasts with the pale dial, while the 20 mm strap width gives the watch a substantial stance that suits its robust early-1970s design.

Silver dial with Spezimatic and Bison signatures

The silver dial has a lightly textured finish with visible age-related spotting and patina. Applied rectangular hour markers use warm metallic tones and dark central details, while a restrained minute track keeps the perimeter clean. The scripted Glashütte name appears above SPEZIMATIC in the upper half, and BISON with 26 RUBIS is printed above 6 o’clock. These markings give the watch a clear visual identity without overcrowding the dial.

Framed date aperture and gold-tone handset

A framed date window sits at 3 o’clock and provides the principal complication. The gold-tone hour and minute hands are broad enough for easy reading and coordinate with the applied markers, while a slender central seconds hand reaches toward the outer track. The uncomplicated three-hand-and-date arrangement keeps the dial practical despite the expressive case surrounding it.

Gold-plated square case with textured surface character

The confirmed gold-plated case is one of the defining features of this example. Its broad square outline has softly rounded corners, a circular bezel and straight lugs that extend from the case body. Fine scratches, surface wear and areas of aging are visible across the plating, particularly on the broad upper planes. Those signs of use are presented as part of the watch’s authentic vintage condition rather than hidden behind an over-restored appearance.

Large ridged crown for everyday adjustment

A prominent ridged crown sits at 3 o’clock and provides practical grip for time and date setting. Its warm tone matches the case and dial furniture, while its generous size works naturally with the substantial case architecture. No crown signature is clearly visible in the supplied photograph, so the listing makes no signed-crown claim.

Black leather strap and 20 mm proportions

The watch is fitted with a black crocodile-embossed leather strap between the 20 mm lugs. Its dark surface provides a strong contrast to the warm case and pale dial, helping the watch retain a dress-oriented finish despite the rugged square geometry. The strap is adjustable for practical wear; because the supplied data does not identify it as an original period strap, no originality claim is made for the strap itself.

GUB 75 automatic caliber with 26-jewel specification

The confirmed GUB 75 caliber provides automatic winding and powers the central time display and date complication. The supplied product information identifies the movement as using 26 jewels and a bi-directional rotor system, while the dial independently confirms 26 RUBIS. The movement is also marked with the code 721, supplied as evidence for the 1972 production year. The watch is listed as serviced and fully operational. Similar self-winding pieces can be compared in our automatic vintage watches with distinctive 1970s mechanical character collection.

Bison identity within East German Glashütte production

The Bison line is presented in the supplied documentation as one of the more recognizable sports-style watches produced by VEB Glashütter Uhrenbetriebe in East Germany. Its broad case, Spezimatic designation, in-house GUB 75 movement and 26-jewel specification give this example a clearly defined place within early-1970s German watchmaking. Collectors interested in related pieces can browse our Glashutte vintage watches with GDR-era mechanical design.

Serviced originality and honest vintage presentation

This 1972 Bison is confirmed as serviced, fully operational and fitted with all original watch components. The dial shows visible age-related spotting and the gold-plated case carries scratches and wear consistent with use over several decades. The black leather strap provides an adjustable contemporary fit without being represented as an original period component. No box or papers are included, and the watch is supplied with a 12-month warranty.