Which is cheaper, the Seiko Prospex Sea 1965 Heritage Diver's Watch or the Squale 1521?

At MSRP the Squale 1521 is the cheaper of the two at $1,265, against $1,300 for the Seiko Prospex Sea 1965 Heritage Diver's Watch — a $35 gap before any retailer discounting.

Which is bigger, the Seiko Prospex Sea 1965 Heritage Diver's Watch or the Squale 1521?

The Squale 1521 wears larger at 42mm versus 40mm for the Seiko Prospex Sea 1965 Heritage Diver's Watch — a 2mm difference across the dial.

Which has better water resistance, the Seiko Prospex Sea 1965 Heritage Diver's Watch or the Squale 1521?

The Squale 1521 is rated to 500m versus 300m for the Seiko Prospex Sea 1965 Heritage Diver's Watch.

Which has a longer power reserve, the Seiko Prospex Sea 1965 Heritage Diver's Watch or the Squale 1521?

The Seiko Prospex Sea 1965 Heritage Diver's Watch carries a 72-hour power reserve against 38 hours on the Squale 1521.

What movement does the Seiko Prospex Sea 1965 Heritage Diver's Watch run compared to the Squale 1521?

Both watches run automatic movements — the Seiko Prospex Sea 1965 Heritage Diver's Watch uses the Seiko 6R55 and the Squale 1521 uses the Sellita SW200-1.

Seiko Prospex Sea 1965 Heritage Diver's WatchvsSquale 1521

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