Seiko Cal. 6638 - 153

Seiko 6638-153

This Hand-Winding model from 1995 features a 44mm Titanium case. Powered by the 6638 caliber with 34j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-1e789447fb1e]

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
44mm
Case Thickness
13.9mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
150m
Dial Color
Black
Jewels
34j
Frequency
21,600 bph
Power Reserve
43 hours
Year
1995

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