Seiko Cal. 4552 - 748

This Spring Drive model from 1969 features a 45mm Two-Tone case. It features a Green dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-17a48e2ce3a1]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

140m

Dial Color

Green

Jewels

17j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1969

Related Models

• Seiko 7137-470
• Seiko 7138-375
• Seiko 5219-425
• Seiko 3896-847
• Seiko 6132-716
• Seiko 3818-555
• Seiko 3863-785
• Seiko 4524-926
• Seiko 6163-608
• Seiko 7153-680
• Seiko 4425-198
• Seiko 5289-129