Statement Modernist pendant & necklace. 1960s Danish/Scandinavian/Brutalist style retro steel/silver tone. Costume jewellery. 27" chain

A really unusual and statement large retro 1960s pendant and chain.
The pendant is roughly a cross shape and is Modernist, Brutalist and Danish in style (see photos and you'll see what I mean).
Front is formed from a series of symmetrical lines and circles/hoops, and has light linear texture.
Unsure of metal type, looks like steel or a similar white silvery metal tone.

Chain is also statement, each large oval link is 5.5cm long, there's 13 of them, forming a 27" chain - so quite long.
The pendant sits at about heart height. Unsigned as far as I can see. It's not overly heavy or chunky.

Pendant is about 108 x 45mm - sizeable.
All quite slimline and flat, but quite something.

Excellent condition, genuine vintage 60s, very wearable... Quite possibly unique!