Seiko Cal. 4578 - 621

This Hand-Winding model from 1987 features a 38mm PVD Black case. Powered by the 4578 caliber with 22j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-130c402a4050]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

White

Jewels

22j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1987

Related Models

• Seiko 6614-523
• Seiko 4483-327
• Seiko 7033-845
• Seiko 6179-834
• Seiko 6234-482
• Seiko 6173-996
• Seiko 3847-467
• Seiko 6399-794
• Seiko 3888-937
• Seiko 6395-954
• Seiko 6135-543
• Seiko 6664-796