Seiko Cal. 6257 - 342

Seiko 6257-342

The Seiko 6257-342 represents an important milestone in Seiko's 1968 lineup. Powered by the 6257 caliber with 17j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-e9a51457628a]

Also known as: Sumo, Bullhead

Specifications

Movement
Solar
Case Material
Titanium
Case Width
39mm
Case Thickness
13.5mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
190m
Dial Color
Black
Jewels
17j
Frequency
28,800 bph
Power Reserve
53 hours
Year
1968

Related Models

seikata-wm-e9a51457628a