Seiko Cal. 3821 - 761

Seiko 3821-761

The 3821-761 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3821 caliber with 31j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-d0c3aead6ab3]

Also known as: Helmet, Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
34mm
Case Thickness
15.0mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
190m
Dial Color
Champagne
Jewels
31j
Frequency
28,800 bph
Power Reserve
50 hours
Year
1971

Related Models

seikata-wm-d0c3aead6ab3