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Watch Comparison

Seiko Prospex Diver SPB051J1 Stainless Steel / Black vs Seiko Mechanical Alpinist Stainless Steel / Green / Strap

Side-by-side specifications for Seiko Prospex Diver SPB051J1 Stainless Steel / Black and Seiko Mechanical Alpinist Stainless Steel / Green / Strap.

Showing specs with available data (91% coverage).

Shared movement lineage

Both watches use movements derived from the Seiko 6R15 caliber family.

Seiko

Seiko Prospex Diver SPB051J1 Stainless Steel / Black Ref. SPB051J1

Seiko

Seiko Mechanical Alpinist Stainless Steel / Green / Strap Ref. SARB017

Case

Diameter
SPB051J142.6 mm
SARB01739.5 mm
Thickness
SPB051J1
SARB01712 mm
Material
SPB051J1Stainless Steel
SARB017Stainless Steel
Water Resist.
SPB051J1200 m
SARB017200 m
Crystal
SPB051J1Sapphire
SARB017Sapphire
Bezel
SPB051J1Rotating Unidirectional Dive
SARB017
Dial Color
SPB051J1Black
SARB017Green

Bracelet

Lug Width
SPB051J120 mm
SARB01720 mm

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Movement

Caliber
SPB051J1Seiko 6R15
SARB017Seiko 6R15
Manufacturer
SPB051J1Seiko
SARB017Seiko
Type
SPB051J1Automatic
SARB017Automatic
Power Reserve
SPB051J150 hrs
SARB01750 hrs
Frequency
SPB051J121,600 bph
SARB01721,600 bph
Jewels
SPB051J123
SARB01723
Complications
SPB051J1hours, minutes, seconds, date
SARB017hours, minutes, seconds, date

Pricing & Production

Production
SPB051J1
SARB0172018 – present
Collection
SPB051J1Prospex Divers
SARB017Mechanical
New comparison

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