Seiko Cal. 3883 - 645

Seiko 3883-645

The 3883-645 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3883 caliber with 18j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-bc2cb1eac4e8]

Also known as: Tuna, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
13.1mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
190m
Dial Color
Blue Sunburst
Jewels
18j
Frequency
36,000 bph
Power Reserve
54 hours
Year
1981

Related Models

seikata-wm-bc2cb1eac4e8