Seiko Cal. 3891 - 604

Released in 1991, the Cal. 3891 with design code 604 was part of Seiko's domestic market collection. Powered by the 3891 caliber with 23j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-4570f0e81165]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

14.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Black

Jewels

23j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1991

Related Models

• Seiko 7151-746
• Seiko 5265-258
• Seiko 6198-994
• Seiko 6241-443
• Seiko 3889-692
• Seiko 7049-644
• Seiko 6616-592
• Seiko 4535-550
• Seiko 6257-989
• Seiko 4478-507
• Seiko 6629-651
• Seiko 0777-735