Seiko
Prospex
SRPG57
$550
MSRP
Specifications
Case Diameter
42.4mm
Lug to Lug
49.4mm
Thickness
13.4mm
Lug Width
20mm
Material
SS
Dial
Ice Blue (Penguin)
Movement
automatic
Caliber
4R36
Crystal
Hardlex
Strap
Bracelet
Pricing & Fit Summary
With a lug-to-lug measurement of 49.4mm, this reference is generally recommended for wrist sizes 14.8cm and larger. Note: fit is determined by lug-to-lug distance (49.4mm), not case diameter (42.4mm).
- 42.4mm
- Diameter
- 49.4mm
- Lug to Lug
- 13.4mm
- Thickness
- 20mm
- Lug Width
- Caliber
- 4R36
- Movement
- Automatic
- Crystal
- Hardlex
- Case Material
- SS
- Dial
- Ice Blue (Penguin)
- Strap
- Bracelet
- MSRP
- $550
- Introduced
- 2021
Perceived Size
How it wears, not just how it measures
~51mm
vs 49mm L2L
Compact (36mm)Substantial (60mm)
↑ 13.4mm case thickness adds +2mm wrist presence
Will this fit your wrist?
Slide to your wrist circumference to see the fit diagram.
Wrist circumference17 cm
12cm17cm (avg)22cm