The Seiko Monster is probably the Seiko watch with the most number of variants and has been feature many times on this blog. As we know, the regular Monsters come under the Superior line and are powered by the 4R36 movement. This time round, Seiko decided to release new variants under the Prospex line. These variants are not much different from the Superior ones except they had the Prospex logo on the dial and caseback.
Here are some photos of the SRP581K.
The caseback is very similar to the regular 4R monster except it has the Prospex logo and lack the inverted “U” (anti-magnetic) sign.
Below is a caseback shot of a regular 4R monster, SRP313K.
The Monster has 20mm lug width and its rubber strap always come with the word “Seiko” on it.
Here are the hang tags. The watch is distributed in Singapore by Thong Sia Co.
Price (SGD) is for reference only. Please do not contact me to buy.
Seiko SRP581K featured in this post is provided by:
Authorized Seiko dealer
K2 Watch Company
845 Geylang Road, Tanjong Katong Complex
#03-K1. Singapore 400845
Tel: 6746 0270