Seiko Cal. 0720 - 105

The 0720-105 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 0720 caliber with 35j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-a59d5336d5e9]

Also known as: Golden Tuna, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

10.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Navy

Jewels

35j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1982

Related Models

• Seiko 7058-270
• Seiko 5682-777
• Seiko 7039-322
• Seiko 6362-202
• Seiko 5285-761
• Seiko 6241-801
• Seiko 7179-990
• Seiko 7197-252
• Seiko 5637-489
• Seiko 6231-739
• Seiko 5222-860
• Seiko 0794-243