Which is cheaper, the Sheffield 1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date or the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition?

At MSRP the Sheffield 1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date is the cheaper of the two at $238, against $1,350 for the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition — a $1,112 gap before any retailer discounting.

Which is bigger, the Sheffield 1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date or the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition?

The Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition wears larger at 42.7mm versus 40mm for the Sheffield 1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date — a 2.7mm difference across the dial.

What movement does the Sheffield 1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date run compared to the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition?

Both watches run automatic movements — the Sheffield 1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date uses the Seiko NH35A and the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition uses the 6R35.

Side by side

Sheffield 1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no datevsSeiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Add a watch

Sheffield 1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date

MSRP $238

Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition

spb301j1

MSRP $1,350

At a glance

11 of 29 specs differ

Diameter

1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date40mm

Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition42.7mm

Power Reserve

1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date—

Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition70h

Water Resistance

1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date200m

Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition200m

MSRP

1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date$238

Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition$1,350

Full specifications

Case

3 specs

Diameter

40mm

42.7mm

Thickness

12.8mm

13.2mm

Lug-to-Lug

46mm

46.4mm

Crystal & Dial

4 specs

Crystal Shape

Flat

Curved

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

White/Blue

Black

Lume

Swiss blue lume

LumiBrite on hands, index(es) and bezel

Movement

3 specs

Caliber

Seiko NH35A

6R35

Power Reserve

—

70h

Jewels

Pricing

1 specs

MSRP

$238

$1,350

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Sheffield 1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no datevsSeiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition

At a glance

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