Seiko Cal. 6340 - 428

The Seiko 6340-428 represents an important milestone in Seiko's 1973 lineup. It features a Green dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-b0fbfb86e506]

Also known as: Sumo, Sea Horse

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

9.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

120m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1973

Related Models

• Seiko 6371-859
• Seiko 6188-334
• Seiko 4493-836
• Seiko 3844-221
• Seiko 4445-791
• Seiko 6396-698
• Seiko 6238-199
• Seiko 6358-849
• Seiko 0774-277
• Seiko 6246-759
• Seiko 5240-107
• Seiko 6393-956