Watch Comparison

Seiko Prospex Sky SRPB57K1 Stainless Steel / Black vs Seiko Mechanical Alpinist Stainless Steel / Green / Strap

Side-by-side specifications for Seiko Prospex Sky SRPB57K1 Stainless Steel / Black and Seiko Mechanical Alpinist Stainless Steel / Green / Strap.

Showing specs with available data (94% coverage).

Seiko

Seiko Prospex Sky SRPB57K1 Stainless Steel / Black Ref. SRPB57K1

Seiko

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

Case

Diameter

SRPB57K144.7 mm

SARB01739.5 mm

Thickness

SRPB57K1—

SARB01712 mm

Material

SRPB57K1Stainless Steel

SARB017Stainless Steel

Water Resist.

SRPB57K1100 m

SARB017200 m

Crystal

SRPB57K1Hardlex

SARB017Sapphire

Bezel

SRPB57K1Rotating Unidirectional Dive

SARB017—

Dial Color

SRPB57K1Black

SARB017Green

Bracelet

Lug Width

SRPB57K122 mm

SARB01720 mm

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Movement

Caliber

SRPB57K1Seiko 4R35

SARB017Seiko 6R15

Manufacturer

SRPB57K1Seiko

SARB017Seiko

Type

SRPB57K1Automatic

SARB017Automatic

Power Reserve

SRPB57K141 hrs

SARB01750 hrs

Frequency

SRPB57K121,600 bph

SARB01721,600 bph

Jewels

SRPB57K123

SARB01723

Complications

SRPB57K1hours, minutes, seconds, date

SARB017hours, minutes, seconds, date

Pricing & Production

Production

SRPB57K12018 – present

SARB0172018 – present

Collection

SRPB57K1Prospex Sky

SARB017Mechanical

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