Seiko Cal. 3816 - 727

Seiko 3816-727

The 3816-727 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3816 caliber with 30j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-45ab44675464]

Also known as: Bullhead

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
43mm
Case Thickness
10.9mm
Lug Width
19mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
70m
Dial Color
Champagne
Jewels
30j
Frequency
21,600 bph
Power Reserve
60 hours
Year
1981

Related Models

seikata-wm-45ab44675464