Seiko Cal. 6630 - 987

Seiko 6630-987

The 6630-987 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6630 caliber with 25j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-5ad180a7d55b]

Also known as: Monster, World Timer

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
15.7mm
Lug Width
22mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
70m
Dial Color
Cream
Jewels
25j
Frequency
21,600 bph
Power Reserve
59 hours
Year
1987

Related Models

seikata-wm-5ad180a7d55b