Seiko Cal. 4521 - 838

Seiko 4521-838

This Automatic model from 1974 features a 39mm PVD Black case. Powered by the 4521 caliber with 20j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-1c9d8a65c26a]

Also known as: World Timer

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
39mm
Case Thickness
13.7mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
180m
Dial Color
Navy
Jewels
20j
Frequency
21,600 bph
Power Reserve
47 hours
Year
1974

Related Models

seikata-wm-1c9d8a65c26a