Seiko Cal. 5688 - 691

Seiko 5688-691

The 5688-691 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5688 caliber with 18j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-8b7a7d68ad31]

Also known as: Turtle, Emperor

Specifications

Movement
Quartz
Case Material
Titanium
Case Width
37mm
Case Thickness
10.9mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
190m
Dial Color
Green
Jewels
18j
Frequency
36,000 bph
Power Reserve
58 hours
Year
1983

Related Models

seikata-wm-8b7a7d68ad31