Seiko Cal. 4448 - 812

Seiko 4448-812

The Seiko 4448-812 represents an important milestone in Seiko's 1968 lineup. Powered by the 4448 caliber with 35j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-a09d1fcdfe5e]

Also known as: World Timer, Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
44mm
Case Thickness
13.2mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
130m
Dial Color
Black
Jewels
35j
Frequency
28,800 bph
Power Reserve
69 hours
Year
1968

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