Seiko Cal. 4521 - 745

Seiko 4521-745

The 4521-745 is a sought-after Spring Drive piece from Seiko's golden era. The Coin-Edge bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-9d2864c7d800]

Also known as: Turtle, Crown

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
13.6mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
130m
Dial Color
Green
Jewels
31j
Frequency
21,600 bph
Power Reserve
40 hours
Year
1977

Related Models

seikata-wm-9d2864c7d800