Seiko Cal. 4438 - 248

Seiko 4438-248

The Seiko 4438-248 represents an important milestone in Seiko's 1972 lineup. Powered by the 4438 caliber with 17j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-15c1705ca534]

Also known as: Sumo, Bullhead

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
46mm
Case Thickness
13.1mm
Lug Width
19mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
140m
Dial Color
Silver
Jewels
17j
Frequency
28,800 bph
Power Reserve
68 hours
Year
1972

Related Models

seikata-wm-15c1705ca534