Seiko Cal. 4548 - 561

This Hand-Winding model from 1981 features a 38mm Two-Tone case. Powered by the 4548 caliber with 17j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-a7130ba1d148]

Also known as: Turtle, Monster

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Burgundy

Jewels

17j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1981

Related Models

• Seiko 3893-623
• Seiko 5661-325
• Seiko 3872-284
• Seiko 7190-326
• Seiko 7132-103
• Seiko 6646-144
• Seiko 4532-184
• Seiko 4534-349
• Seiko 5230-451
• Seiko 6144-284
• Seiko 6332-542
• Seiko 4476-180