Seiko Cal. 5621 - 664

Seiko 5621-664

This Hand-Winding model from 1986 features a 41mm Hardlex-Coated Steel case. Powered by the 5621 caliber with 33j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-f70cc4ec58af]

Also known as: Helmet

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
11.3mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
30m
Dial Color
Navy
Jewels
33j
Frequency
28,800 bph
Power Reserve
42 hours
Year
1986

Related Models

seikata-wm-f70cc4ec58af