Seiko Cal. 4539 - 961

The Seiko 4539-961 represents an important milestone in Seiko's 1988 lineup. It features a Navy dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-d74229182cde]

Also known as: Helmet, Goldfeather

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Navy

Jewels

32j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1988

Related Models

• Seiko 5635-338
• Seiko 6389-734
• Seiko 3822-433
• Seiko 4551-649
• Seiko 6322-762
• Seiko 5635-750
• Seiko 7057-909
• Seiko 6359-811
• Seiko 0765-959
• Seiko 5647-739
• Seiko 5693-138
• Seiko 7062-562