Prospex SRQ053J1

The Seiko Prospex SRQ053J1 is a bold mechanical chronograph that blends precision with classic style. Powered by the 8R48 automatic movement, it features a 30-minute and 12-hour chronograph, date display, and a 45-hour power reserve.

Its 42mm stainless steel case is paired with a dual-curved sapphire crystal and LumiBrite accents for clear readability. With 10-bar water resistance, magnetic protection, and a screw-down case back, it’s built for durability and everyday performance.

Movement

Caliber Number

8R48

Movement Type

Automatic with manual winding

Precision

+25 to -15 seconds per day

Power reserve

Approx. 45 hours

Jewels

34

Functions

• Chronograph with 30 minutes & 12 hours
• Stop second hand function
• Date display

Case/Band

Case Material

Stainless steel (super hard coating)

Case Size

Thickness:14.6mm
Diameter:42.0mm
Lug-to-lug:49.5mm

Crystal

Dual-curved sapphire crystal

Crystal Coating

Anti-reflective coating on inner surface

LumiBrite

LumiBrite on hands and index(es)

Clasp

Three-fold clasp with push button release

Distance between lugs

20

Other Details

Water Resistance

10 bar

Magnetic Resistance

4,800 A/m

Features

• Screw case back

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