Seiko Cal. 5643 - 370

Seiko 5643-370

This Quartz model from 1978 features a 40mm Hardlex-Coated Steel case. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-67312e329104]

Also known as: Bellmatic, Crown

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
13.8mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
180m
Dial Color
Silver
Jewels
29j
Frequency
28,800 bph
Power Reserve
70 hours
Year
1978

Related Models

seikata-wm-67312e329104