Seiko Cal. 4521 - 257

The Seiko 4521-257 represents an important milestone in Seiko's 1988 lineup. It features a Navy dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-4ced432e2471]

Also known as: Pogue, Sea Horse

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

42mm

Case Thickness

12.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

30j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1988

Related Models

• Seiko 6345-222
• Seiko 4489-151
• Seiko 4432-844
• Seiko 5623-733
• Seiko 4438-948
• Seiko 7071-325
• Seiko 6161-689
• Seiko 6679-124
• Seiko 6220-354
• Seiko 4535-665
• Seiko 3828-577
• Seiko 3837-499