Seiko Cal. 3815 - 366

Seiko 3815-366

The 3815-366 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3815 caliber with 34j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-c36214f9e3b6]

Also known as: Tuna, Navigator

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
39mm
Case Thickness
12.7mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
120m
Dial Color
Burgundy
Jewels
34j
Frequency
36,000 bph
Power Reserve
71 hours
Year
1982

Related Models

seikata-wm-c36214f9e3b6