Seiko Cal. 5637 - 681

Seiko 5637-681

This Kinetic model from 1986 features a 39mm Two-Tone case. The Bidirectional bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-511008e56e09]

Also known as: Bullhead, Bellmatic

Specifications

Movement
Kinetic
Case Material
Two-Tone
Case Width
39mm
Case Thickness
8.2mm
Lug Width
20mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
150m
Dial Color
Black
Jewels
33j
Frequency
21,600 bph
Power Reserve
38 hours
Year
1986

Related Models

seikata-wm-511008e56e09