Seiko Cal. 4538 - 746

The Seiko 4538-746 represents an important milestone in Seiko's 1993 lineup. Powered by the 4538 caliber with 17j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-5cd053c25498]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

45mm

Case Thickness

9.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Burgundy

Jewels

17j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1993

Related Models

• Seiko 4540-999
• Seiko 4471-885
• Seiko 6697-364
• Seiko 4411-750
• Seiko 6311-479
• Seiko 3824-733
• Seiko 0765-333
• Seiko 4534-813
• Seiko 4486-254
• Seiko 6245-186
• Seiko 4430-385
• Seiko 7012-475