Seiko Cal. 5615 - 320

The 5615-320 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5615 caliber with 22j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-315a2a97d328]

Also known as: Golden Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

40m

Dial Color

Cream

Jewels

22j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1966

Related Models

• Seiko 3885-213
• Seiko 5265-901
• Seiko 5646-218
• Seiko 6156-530
• Seiko 3876-362
• Seiko 4516-304
• Seiko 7073-412
• Seiko 4464-205
• Seiko 6223-439
• Seiko 5634-330
• Seiko 6257-697
• Seiko 3883-491