Seiko Cal. 6640 - 716

Seiko 6640-716

This Automatic model from 1994 features a 34mm Stainless Steel case. Powered by the 6640 caliber with 25j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-1484291020ce]

Also known as: Helmet, Crown

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
34mm
Case Thickness
9.2mm
Lug Width
21mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
200m
Dial Color
Burgundy
Jewels
25j
Frequency
36,000 bph
Power Reserve
57 hours
Year
1994

Related Models

seikata-wm-1484291020ce