Seiko Cal. 6156 - 726

Released in 1970, the Cal. 6156 with design code 726 was part of Seiko's domestic market collection. It features a Silver dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-02b320deb0cb]

Also known as: Sumo, World Timer

Specifications

Movement

Solar

Case Material

Titanium

Case Width

41mm

Case Thickness

15.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Silver

Jewels

23j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1970

Related Models

• Seiko 4580-159
• Seiko 6357-735
• Seiko 5687-775
• Seiko 7019-927
• Seiko 7080-959
• Seiko 7195-730
• Seiko 6137-162
• Seiko 7065-541
• Seiko 6130-797
• Seiko 4443-317
• Seiko 4498-141
• Seiko 7055-707