With the rise and fall of strap and bracelet trends, I thought I would put a vote in for the humble bund strap.
On the right watch, it can bring that military vintage charm and the romance of the sepia-tinted trench.
Popular culture suggests
...the Bund strap was originally developed by the German Air-force to combat metal burn on the skin of wrists due to sudden temperature changes in cockpits
...the Bund strap pre-dates the aviation adaptation, and originates from the trend to move pocket watches to the wrist (as in the Pershing strap)
...the Bund strap's main role was to keep watches of low water resistance protected from sweaty wrists as this helped both their longevity and reliability
...the Bund strap served to save the thin and cheap chrome plating on many watches from discolouring and protect the crown from digging into the hand on flexing
Maybe some are true, maybe all (or none) are true - but it is likely that at some point you will have a watch in your collection that could pull off a bund look.
A Tissot T-Classic XXL Chronograph (2005) with a white (high-visibility face) full Arabic numeral dial, three subdials (including small seconds at 6) and a simple 316L stainless steel bezel.
Now admittedly, at 44mm diameter the XXL is not typical of the 30mm timepieces of last Century, and the 22mm lugs enable a manly strap (unlike the 10-14mm lugs of older watches) without needing a Bund to bulk up the look however...
A 22mm HDT Bund Strap in waterproof-treated Italian calf leather from Chronoworld.
The supple brown oil-treated leather presents a great "blush" when flexed and promises to weather up well.
I have fitted the strap with a 22mm Tissot Couturier push-button butterfly deployment clasp.